View Filing Data

Print Document View Excel Document

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 29, 2012	Feb. 11, 2013	Jun. 29, 2012
Entity Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 29, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Trading Symbol	COHU
Entity Registrant Name	COHU INC
Entity Central Index Key	0000021535
Current Fiscal Year End Date	--12-29
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		24,639,179
Entity Public Float			$ 109,000,000

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 102,808	$ 53,262
Short-term investments	7,421	51,740
Accounts receivable, net	36,986	41,922
Inventories:
Raw materials and purchased parts	37,140	47,186
Work in process	14,958	15,504
Finished goods	10,234	19,999
Total inventories	62,332	82,689
Deferred income taxes	4,746	6,646
Other current assets	6,790	7,557
Total current assets	221,083	243,816
Property, plant and equipment, at cost:
Land and land improvements	12,106	12,002
Buildings and building improvements	31,209	31,190
Machinery and equipment	40,108	38,007
Property plant and equipment, gross	83,423	81,199
Less accumulated depreciation and amortization	(47,959)	(44,218)
Net property, plant and equipment	35,464	36,981
Goodwill	58,756	58,060
Intangible assets, net	18,977	21,828
Other assets	593	923
Total consolidated assets	334,873	361,608
Current liabilities:
Accounts payable	13,217	18,625
Accrued compensation and benefits	10,271	12,652
Accrued warranty	4,692	6,801
Deferred profit	2,139	2,821
Income taxes payable	1,109	2,518
Other accrued liabilities	4,952	8,454
Total current liabilities	36,380	51,871
Other accrued liabilities	5,847	5,964
Deferred income taxes	11,747	12,742
Commitments and contingencies
Stockholders' equity:
Preferred stock, $1 par value; 1,000 shares authorized, none issued
Common stock, $1 par value; 60,000 shares authorized, 24,632 shares issued and outstanding in 2012 and 24,330 shares in 2011	24,632	24,330
Paid-in capital	83,547	77,658
Retained earnings	170,937	189,055
Accumulated other comprehensive income (loss)	1,783	(12)
Total stockholders' equity	280,899	291,031
Total liabilities and stockholders' equity	$ 334,873	$ 361,608

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Dec. 29, 2012	Dec. 31, 2011
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	60,000	60,000
Common stock, shares issued	24,632	24,330
Common stock, shares outstanding	24,632	24,330

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Net sales	$ 221,162	$ 308,968	$ 322,667
Cost and expenses:
Cost of sales	153,184	208,839	212,672
Research and development	36,171	36,230	36,201
Selling, general and administrative	45,891	46,563	44,117
Total cost and expenses	235,246	291,632	292,990
Income (loss) from operations	(14,084)	17,336	29,677
Interest and other income	967	442	561
Income (loss) before income taxes	(13,117)	17,778	30,238
Income tax provision (benefit)	(874)	2,059	5,594
Net income (loss)	$ (12,243)	$ 15,719	$ 24,644
Income (loss) per share:
Basic	$ (0.50)	$ 0.65	$ 1.04
Diluted	$ (0.50)	$ 0.64	$ 1.02
Weighted average shares used in computing income (loss) per share:
Basic	24,459	24,134	23,732
Diluted	24,459	24,501	24,097

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Net income (loss)	$ (12,243)	$ 15,719	$ 24,644
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	1,689	(1,076)	(7,270)
Adjustments related to postretirement benefits	122	1,267	(1,506)
Change in unrealized gain/loss on investments	(16)	(6)	(83)
Other comprehensive income (loss), net of tax	1,795	185	(8,859)
Comprehensive income (loss)	$ (10,448)	$ 15,904	$ 15,785

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 19
-Article 5

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock $1 par value [Member]	Paid-in capital [Member]	Retained earnings [Member]	Accumulated other comprehensive income (loss) [Member]
Beginning balance at Dec. 26, 2009	$ 257,249	$ 23,547	$ 64,847	$ 160,193	$ 8,662
Net income loss	24,644			24,644
Changes in cumulative translation adjustment	(7,270)				(7,270)
Adjustments related to postretirement benefits, net of income taxes	(1,506)				(1,506)
Changes in unrealized gains and losses on investments, net of income taxes	(83)				(83)
Cash dividends - $0.24 per share	(5,703)			(5,703)
Exercise of stock options	2,869	263	2,606
Shares issued under employee stock purchase plan	1,213	112	1,101
Shares issued for restricted stock units vested		101	(101)
Repurchase and retirement of stock	(465)	(34)	(431)
Share-based compensation expense	3,543		3,543
Tax benefit from equity awards	234		234
Ending balance at Dec. 25, 2010	274,725	23,989	71,799	179,134	(197)
Net income loss	15,719			15,719
Changes in cumulative translation adjustment	(1,076)				(1,076)
Adjustments related to postretirement benefits, net of income taxes	1,267				1,267
Changes in unrealized gains and losses on investments, net of income taxes	(6)				(6)
Cash dividends - $0.24 per share	(5,798)			(5,798)
Exercise of stock options	1,111	123	988
Shares issued under employee stock purchase plan	1,262	120	1,142
Shares issued for restricted stock units vested		139	(139)
Repurchase and retirement of stock	(462)	(41)	(421)
Share-based compensation expense	4,287		4,287
Tax benefit from equity awards	2		2
Ending balance at Dec. 31, 2011	291,031	24,330	77,658	189,055	(12)
Net income loss	(12,243)			(12,243)
Changes in cumulative translation adjustment	1,689				1,689
Adjustments related to postretirement benefits, net of income taxes	122				122
Changes in unrealized gains and losses on investments, net of income taxes	(16)				(16)
Cash dividends - $0.24 per share	(5,875)			(5,875)
Exercise of stock options	609	73	536
Shares issued under employee stock purchase plan	1,252	152	1,100
Shares issued for restricted stock units vested		108	(108)
Repurchase and retirement of stock	(291)	(31)	(260)
Share-based compensation expense	4,621		4,621
Ending balance at Dec. 29, 2012	$ 280,899	$ 24,632	$ 83,547	$ 170,937	$ 1,783

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Cash dividend, per share	$ 0.24	$ 0.24	$ 0.24

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Cash flows from operating activities:
Net income (loss)	$ (12,243)	$ 15,719	$ 24,644
Adjustments to reconcile net income (loss) to net cash provided from operating activities:
Depreciation and amortization	9,403	10,067	10,988
Share-based compensation expense	4,621	4,287	3,543
Gain on sale of facility	(677)
Deferred income taxes	581	(1,676)	(1,971)
Accrued retiree benefits	(91)	381	(222)
Excess tax benefit from stock options exercised		(2)	(234)
Changes in current assets and liabilities, excluding effects from acquisitions:
Accounts receivable	4,979	24,877	(23,434)
Inventories	19,897	(20,865)	(13,866)
Accounts payable	(5,458)	427	(4,402)
Other current assets	978	(1,549)	2,958
Income taxes payable, including excess stock option exercise benefits	(1,667)	(6,462)	7,334
Deferred profit	(682)	(12,013)	9,512
Accrued compensation, warranty and other liabilities	(6,472)	(953)	4,665
Net cash provided from operating activities	13,169	12,238	19,515
Cash flows from investing activities, excluding effects from acquisitions:
Sales and maturities of short-term investments	84,780	75,657	46,979
Purchases of short-term investments	(40,461)	(75,128)	(52,491)
Purchases of property, plant and equipment	(3,267)	(1,413)	(4,579)
Cash received from facility sale	1,080
Cash paid for Duma Video, Inc.	(900)
Other assets	(66)	78	314
Net cash provided from (used for) investing activities	41,166	(806)	(9,777)
Cash flows from financing activities:
Cash dividends paid	(7,333)	(5,777)	(5,679)
Issuance of stock, net	1,570	1,911	3,617
Excess tax benefit from stock options exercised		2	234
Net cash used for financing activities	(5,763)	(3,864)	(1,828)
Effect of exchange rate changes on cash and cash equivalents	974	(227)	(236)
Net increase in cash and cash equivalents	49,546	7,341	7,674
Cash and cash equivalents at beginning of year	53,262	45,921	38,247
Cash and cash equivalents at end of year	102,808	53,262	45,921
Supplemental disclosure of cash flow information:
Income taxes	711	10,203	(2,138)
Inventory capitalized as capital assets	$ 567	1,380	2,990
Dividends declared but not yet paid		$ 1,455	$ 1,434

Summary of Significant Accounting Policies

12 Months Ended

Dec. 29, 2012

Summary of Significant Accounting Policies

1.	Summary of Significant Accounting Policies

Basis of Presentation – Cohu, Inc. (“Cohu”, “we”, “our” and “us”), through our wholly owned subsidiaries, is a provider of semiconductor test equipment, microwave communication systems and video cameras. Our Consolidated Financial Statements include the accounts of Cohu and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates.

Our fiscal years are based on a 52- or 53-week period ending on the last Saturday in December. Our fiscal years ended on December 29, 2012 and December 25, 2010 each consisted of 52 weeks and our fiscal year ended December 31, 2011 consisted of 53 weeks.

Certain prior year balances related to comprehensive income and customer advances have been reclassified to conform to the current year’s presentation. Such reclassifications did not affect total revenues, operating income or net income.

Risks and Uncertainties – We are subject to a number of risks and uncertainties that may significantly impact our future operating results. These risks and uncertainties are discussed under Part I, Item 1A. “Risk Factors” included in this Annual Report on Form 10-K. Understanding these risks and uncertainties is integral to the review of our consolidated financial statements.

Income (Loss) Per Share – Basic income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted income per share includes the dilutive effect of common shares potentially issuable upon the exercise of stock options, vesting of outstanding restricted stock units and issuance of stock under our employee stock purchase plan using the treasury stock method. In loss periods, potentially dilutive securities are excluded from the per share computations due to their anti-dilutive effect. For purposes of computing diluted income per share, stock options with exercise prices that exceed the average fair market value of our common stock for the period are excluded. For the years ended December 31, 2011 and December 25, 2010 approximately 1,956,000 and 1,724,000 shares of our common stock were excluded from the computation, respectively.

The following table reconciles the denominators used in computing basic and diluted income (loss) per share:


(in thousands)	2012		2011		2010
Weighted average common shares outstanding		24,459		24,134		23,732
Effect of dilutive stock options and restricted stock units		—		367		365

		24,459		24,501		24,097

Cash, Cash Equivalents and Short-term Investments – Highly liquid investments with insignificant interest rate risk and original maturities of three months or less are classified as cash and cash equivalents. Investments with maturities greater than three months are classified as short-term investments. All of our short-term investments are classified as available-for-sale and are reported at fair value, with any unrealized gains and losses, net of tax, recorded in the statement of comprehensive income (loss). We manage our cash equivalents and short-term investments as a single portfolio of highly marketable securities. We have the ability and intent, if necessary, to liquidate any of our investments in order to meet the liquidity needs of our current operations during the next 12 months. Accordingly, investments with contractual maturities greater than one year from December 29, 2012 have been classified as current assets in the accompanying consolidated balance sheets.

Fair Value of Financial Instruments – The carrying amounts of our financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable and accrued expenses, approximate fair value due to the short maturities of these financial instruments.

Concentration of Credit Risk – Financial instruments that potentially subject us to significant credit risk consist principally of cash equivalents, short-term investments and trade accounts receivable. We invest in a variety of financial instruments and, by policy, limit the amount of credit exposure with any one issuer.

Trade accounts receivable are presented net of allowance for doubtful accounts of $0.3 million at December 29, 2012 and $0.5 million at December 31, 2011. Our customers include semiconductor manufacturers and semiconductor test subcontractors and other customers located throughout many areas of the world. While we believe that our allowance for doubtful accounts is adequate and represents our best estimate of potential loss exposure at December 29, 2012, we will continue to monitor customer liquidity and other economic conditions, which may result in changes to our estimates regarding collectability.

Inventories – Inventories are stated at the lower of cost, determined on a current average or first-in, first-out basis, or market. Cost includes labor, material and overhead costs. Determining market value of inventories involves numerous estimates and judgments including projecting average selling prices and sales volumes for future periods and costs to complete and dispose of inventory. As a result of these analyses, we record a charge to cost of sales in advance of the period when the inventory is sold when market values are below our costs. Charges to cost of sales for excess and obsolete inventories aggregated $8.9 million, $5.8 million, and $1.7 million in 2012, 2011 and 2010, respectively.

Property, Plant and Equipment – Depreciation and amortization of property, plant and equipment is calculated principally on the straight-line method based on estimated useful lives of thirty to forty years for buildings, five to fifteen years for building improvements and three to ten years for machinery, equipment and software.

Goodwill, Purchased Intangible Assets and Other Long-lived Assets – We evaluate goodwill for impairment annually and when an event occurs or circumstances change that indicate that the carrying value may not be recoverable. We test goodwill for impairment by first comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value, a second step is performed to compute the amount of impairment as the difference between the estimated fair value of goodwill and the carrying value. We estimated the fair values of our reporting units primarily using the income approach valuation methodology that includes the discounted cash flow method, taking into consideration the market approach and certain market multiples as a validation of the values derived using the discounted cash flow methodology. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on customer forecasts, industry trade organization data and general economic conditions.

We conduct our annual impairment test as of October 1^st of each year, and have determined there is no impairment as of October 1, 2012. Other events and changes in circumstances may also require goodwill to be tested for impairment between annual measurement dates. While a decline in stock price and market capitalization is not specifically cited as a goodwill impairment indicator, a company’s stock price and market capitalization should be considered in determining whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. Additionally, a significant decline in a company’s stock price may suggest that an adverse change in the business climate may have caused the fair value of one or more reporting units to fall below their carrying value. The financial and credit market volatility directly impacts our fair value measurement through our stock price that we use to determine our market capitalization. During times of volatility, significant judgment must be applied to determine whether credit or stock price changes are a short-term swing or a longer-term trend. As of December 29, 2012 we do not believe there have been any events or circumstances that would require us to perform an interim goodwill impairment review, however, a sustained decline in Cohu’s market capitalization below its book value could lead us to determine, in a future period, that an interim goodwill impairment review is required and may result in an impairment charge, which would have a negative impact on our results of operations.

Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For long-lived assets, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the carrying amount and estimated fair value.

Product Warranty – Product warranty costs are accrued in the period sales are recognized. Our products are generally sold with standard warranty periods, which differ by product, ranging from 12- to 36-months. Parts and labor are typically covered under the terms of the warranty agreement. Our warranty expense accruals are based on historical and estimated costs by product and configuration. From time-to-time we offer customers extended warranties beyond the standard warranty period. In those situations the revenue relating to the extended warranty is deferred at its estimated fair value and recognized on a straight-line basis over the contract period. Costs associated with our extended warranty contracts are expensed as incurred.

Income Taxes – We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances and information available at the reporting dates. For those tax positions where it is more-likely-than-not that a tax benefit will be sustained, we have recorded the largest amount of tax benefit with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. For those income tax positions where it is not more-likely-than-not that a tax benefit will be sustained, no tax benefit has been recognized in the financial statements. Where applicable, associated interest has also been recognized and recorded, net of federal and state tax benefits, in income tax expense.

Contingencies and Litigation – We assess the probability of adverse judgments in connection with current and threatened litigation. We would accrue the cost of an adverse judgment if, in our estimation, the adverse outcome is probable and we can reasonably estimate the ultimate cost.

Revenue Recognition – Our net sales are derived from the sale of products and services and are adjusted for estimated returns and allowances, which historically have been insignificant. We recognize revenue when there is persuasive evidence of an arrangement, title and risk of loss have passed, delivery has occurred or the services have been rendered, the sales price is fixed or determinable and collection of the related receivable is reasonably assured. Title and risk of loss generally pass to our customers upon shipment. In circumstances where either title or risk of loss pass upon destination or acceptance, we defer revenue recognition until such events occur.

Revenue for established products that have previously satisfied a customer’s acceptance requirements and provide for full payment tied to shipment is generally recognized upon shipment and passage of title. In certain instances, customer payment terms may provide that a minority portion (e.g. 20%) of the equipment purchase price be paid only upon customer acceptance. In those situations, the majority portion (e.g. 80%) of revenue where payment is tied to shipment and the entire product cost of sale are recognized upon shipment and passage of title and the minority portion of the purchase price related to customer acceptance is deferred and recognized upon receipt of customer acceptance. In cases where a prior history of customer acceptance cannot be demonstrated or from sales where customer payment dates are not determinable and in the case of new products, revenue is deferred until customer acceptance has been received. Our post-shipment obligations typically include installation and standard warranties. The estimated fair value of installation related revenue is recognized in the period the installation is performed. Service revenue is recognized ratably over the period of the related contract. Spares and kit revenue is generally recognized upon shipment.

Certain of our equipment sales are accounted for as multiple-element arrangements. A multiple-element arrangement is a transaction which may involve the delivery or performance of multiple products, services, or rights to use assets, and performance may occur at different points in time or over different periods of time. For arrangements containing multiple elements initiated prior to December 26, 2010, the first day of our fiscal 2011, the revenue relating to the undelivered elements is deferred at their estimated relative fair values until delivery of the deferred elements. For arrangements initiated or materially modified subsequent to December 26, 2010 containing multiple elements, the revenue relating to the undelivered elements is deferred using the relative selling price method utilizing estimated sales prices until delivery of the deferred elements. We limit the amount of revenue recognition for delivered elements to the amount that is not contingent on the future delivery of products or services, future performance obligations or subject to customer-specified return or adjustment.

On shipments where sales are not recognized, gross profit is generally recorded as deferred profit in our consolidated balance sheet representing the difference between the receivable recorded and the inventory shipped. In certain instances where customer payments are received prior to product shipment, the customer’s payments are recorded as customer advances in our consolidated balance sheet. At December 29, 2012, we had total deferred revenue of approximately $3.6 million and deferred profit of $2.1 million. At December 31, 2011, we had total deferred revenue of approximately $6.6 million and deferred profit of $2.8 million.

Advertising Costs – Advertising costs are expensed as incurred and were not material for all periods presented.

Share-based Compensation – We measure and recognize all share-based compensation under the fair value method. Our estimate of share-based compensation expense requires a number of complex and subjective assumptions including our stock price volatility, employee exercise patterns (expected life of the options), future forfeitures and related tax effects. The assumptions used in calculating the fair value of share-based awards represent our best estimates, but these estimates involve inherent uncertainties and the application of management judgment. Although we believe the assumptions and estimates we have made are reasonable and appropriate, changes in assumptions could materially impact our reported financial results.

Foreign Currency Translation – Assets and liabilities of those subsidiaries that use the U.S. dollar as their functional currency are translated using exchange rates in effect at the end of the period, except for nonmonetary assets, such as inventories and property, plant and equipment, which are translated using historical exchange rates. Revenues and costs are translated using average exchange rates for the period, except for costs related to those balance sheet items that are translated using historical exchange rates. Gains and losses on foreign currency transactions are recognized as incurred. Our subsidiaries located in Germany, designated the Euro as their functional currency and, as a result, their assets and liabilities are translated at the rate of exchange at the balance sheet date, while revenue and expenses are translated using the average exchange rate for the period. Cumulative translation adjustments resulting from the translation of the financial statements are included as a separate component of stockholders’ equity. Foreign currency gains and losses were not significant in any period and are included in the consolidated statements of operations.

Comprehensive Income (Loss) – Our accumulated other comprehensive income (loss) totaled approximately

$1.8 million and $(12,000) at December 29, 2012 and December 31, 2011, respectively, and was attributed to, net of income taxes where applicable, foreign currency adjustments resulting from the translation of certain accounts into U.S. dollars where the functional currency is the Euro, unrealized losses and gains on investments and adjustments to accumulated postretirement benefit obligations. Additional information related to accumulated other comprehensive income (loss), on an after-tax basis is included in Note 12.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements – In September 2011, the Financial Accounting Standards Board (“FASB”) issued guidance to amend and simplify the rules related to testing goodwill for impairment. The revised guidance allows an entity to make an initial qualitative evaluation, based on the entity’s events and circumstances, to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The results of this qualitative assessment determine whether it is necessary to perform the currently required two-step impairment test. The new guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of this new guidance in the first quarter of fiscal 2012 did not have a material impact on our consolidated financial position, results of operations or cash flows.

In June 2011, the FASB issued new guidance on the presentation of comprehensive income. Specifically, the new guidance allows an entity to present components of net income and other comprehensive income in one continuous statement, referred to as the statement of comprehensive income, or in two separate, but consecutive statements. The new guidance eliminates the current option to report other comprehensive income and its components in the statement of changes in equity. While the new guidance changes the presentation of comprehensive income, there are no changes to the components that are recognized in net income or other comprehensive income under current accounting guidance. This new guidance is effective for fiscal years and interim periods beginning after December 15, 2011. The adoption of this new guidance in the first quarter of fiscal 2012 did not have a material impact on our consolidated financial position, results of operations or cash flows.

In May 2011, the FASB issued new guidance to achieve common fair value measurement and disclosure requirements between GAAP and International Financial Reporting Standards. This new guidance amends current fair value measurement and disclosure guidance to include increased transparency around valuation inputs and investment categorization. This new guidance is effective for fiscal years and interim periods beginning after December 15, 2011. The adoption of this new guidance in the first quarter of fiscal 2012 did not have a material impact on our consolidated financial position, results of operations or cash flows.

Recently Issued Accounting Pronouncements – In July 2012, the FASB issued guidance to simplify the testing for a drop in value of intangible assets such as trademarks, patents, and distribution rights. The amended standard reduces the cost of accounting for indefinite-lived intangible assets, especially in cases where the likelihood of impairment is low. The changes permit businesses and other organizations to first use subjective criteria to determine if an intangible asset has lost value. The amendments will be effective for fiscal years starting after September 15, 2012 with early adoption permitted. We do not believe our adoption of the new guidance in the first quarter of fiscal 2013 will have an impact on our consolidated financial position, results of operations or cash flows.

Subsequent Event

12 Months Ended

Dec. 29, 2012

Subsequent Event

2.	Subsequent Event

On December 31, 2012, we completed the acquisition (the “Acquisition”) of all of the outstanding share capital of Ismeca Semiconductor Holding SA (“Ismeca”) from Schweiter Technologies AG (the “Seller”) pursuant to a Share Purchase and Transfer Agreement dated December 9, 2012, by and between the Seller and a wholly owned subsidiary of Cohu (the “Purchase Agreement”). Ismeca, headquartered in La Chaux-de-Fonds, Switzerland, and with major operations in Malacca, Malaysia and Suzhou, China, designs, manufactures and sells turret-based test handling and back-end finishing equipment for ICs, LEDs and discrete components. The aggregate purchase price was approximately $57.1 million, comprised of an initial purchase price of $54.5 million, increased by approximately $2.6 million based on net cash and net debt acquired, as required by the Purchase Agreement. In connection with the Acquisition, we incurred approximately $2.3 million in acquisition related costs, which were expensed as general and administrative costs during the year ended December 29, 2012.

Due to the timing of the closing of the Acquisition we are currently in the process of completing the purchase accounting and related allocations. Although this work is preliminary, at this time we anticipate that a significant portion of the purchase price will be allocated to goodwill and purchased intangible assets and we expect this work to be completed in the second quarter of fiscal 2013.

Goodwill and Purchased Intangible Assets

12 Months Ended

Dec. 29, 2012

Goodwill and Purchased Intangible Assets

3.	Goodwill and Purchased Intangible Assets

Changes in the carrying value of goodwill by reportable segment during the years ended December 29, 2012 and December 31, 2011 were as follows (in thousands):


	Semiconductor Equipment			Microwave Communications			Total Goodwill
Balance, December 25, 2010	$	55,280		$	3,218		$	58,498
Impact of currency exchange		(408	)		(30	)		(438	)

Balance, December 31, 2011		54,872			3,188			58,060
Impact of currency exchange		648			48			696

Balance, December 29, 2012	$	55,520		$	3,236		$	58,756

In August 2012, our microwave communication equipment segment acquired the intellectual property and certain other assets of Duma Video, Inc. (“Duma”), a distributor of low latency compression video encoding and decoding devices. The purchase price of these assets was approximately $1.0 million and the amount allocated to intangible assets is being amortized on a straight-line basis over three years. Under the terms of the purchase agreement, in addition to the up-front cash payment, we will be required to make future payments to the seller totaling a maximum of approximately $0.5 million, contingent upon the completion of certain milestone events.

Our purchased intangible assets, subject to amortization, were as follows (in thousands):


	December 29, 2012						December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization
	Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization
Rasco technology	$	32,399	$	16,452		4.0 years	$	31,737	$	12,149
Duma technology		864		120		2.6 years		—		—

	$	33,263	$	16,572			$	31,737	$	12,149

The amounts included in the table above for the years ended December 29, 2012 and December 31, 2011 exclude approximately $2.3 million and $2.2 million, respectively, related to the Rasco trade name which has an indefinite life and is not being amortized.

Amortization expense related to purchased intangible assets was approximately $4.1 million, $4.6 million and $6.1 million in 2012, 2011 and 2010, respectively. As of December 29, 2012, we expect amortization expense in future periods to be as follows: 2013 – $4.3 million; 2014 - $4.3 million; 2015 - $4.2 million; and 2016 - $3.8 million.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Cash, Cash Equivalents and Short-term Investments

12 Months Ended

Dec. 29, 2012

Cash, Cash Equivalents and Short-term Investments

4.	Cash, Cash Equivalents and Short-term Investments

Our cash, cash equivalents, and short-term investments consisted primarily of cash and other investment grade securities. We do not hold investment securities for trading purposes. All short-term investments are classified as available-for-sale and recorded at fair value. Investment securities are exposed to market risk due to changes in interest rates and credit risk and we monitor credit risk and attempt to mitigate exposure by making high-quality investments and through investment diversification.

Gains and losses on investments are calculated using the specific-identification method and are recognized during the period in which the investment is sold or when an investment experiences an other-than-temporary decline in value. Factors that could indicate an impairment exists include, but are not limited to: earnings performance, changes in credit rating or adverse changes in the regulatory or economic environment of the asset. Gross realized gains and losses on sales of short-term investments are included in interest income. Realized gains and losses for the periods presented were not significant.

Investments that we have classified as short-term, by security type, are as follows (in thousands):


	At December 29, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses ⁽¹⁾		Estimated Fair Value


Municipal securities	$	1,470	$	—	$	—	$	1,470
Government-sponsored enterprise securities		5,937		14		—		5,951

	$	7,407	$	14	$	—	$	7,421


	At December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value


U.S. Treasury securities	$	3,258	$	9	$	—	$	3,267
Corporate debt securities ⁽²⁾		22,454		6		2		22,458
Municipal securities		4,315		—		—		4,315
Government-sponsored enterprise securities		19,033		32		15		19,050
Bank certificates of deposit		2,650		—		—		2,650

	$	51,710	$	47	$	17	$	51,740

(1)

As of December 29, 2012, there were no investments in our portfolio in a loss position. As of December 31, 2011, the cost and fair value of investments with loss positions were approximately $12.8 million. We evaluated the nature of these investments, credit worthiness of the issuer and the duration of these impairments to determine if an other-than-temporary decline in fair value had occurred and concluded that these losses were temporary and we have the ability and intent to hold these investments to maturity.

(2)	Corporate debt securities include investments in financial and other corporate institutions. No single issuer represents a significant portion of the total corporate debt securities portfolio.

Effective maturities of short-term investments at December 29, 2012, were as follows:


(in thousands)	Amortized Cost		Estimated Fair Value
(in thousands)	Amortized Cost		Estimated Fair Value
Due in one year or less	$	7,407	$	7,421

Our municipal securities include variable rate demand notes which can be put (sold at par) typically on a daily basis with settlement periods ranging from the same day to one week and have varying contractual maturities through 2037. These securities can be used for short-term liquidity needs and are held for limited periods of time. At December 29, 2012 these securities had amortized cost and fair value of $1.5 million and are included in “Due in one year or less” in the table above.

Accounting standards pertaining to fair value measurements establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. When available, we use quoted market prices to determine the fair value of our investments, and they are included in Level 1. When quoted market prices are unobservable, we use quotes from independent pricing vendors based on recent trading activity and other relevant information.

The following table summarizes, by major security type, our assets that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands):


	Fair value measurements at December 29, 2012 using:
	Level 1		Level 2		Level 3		Total estimated fair value
	Level 1		Level 2		Level 3		Total estimated fair value
Cash	$	101,054	$	—	$	—	$	101,054
Municipal securities		—		1,470		—		1,470
Government-sponsored enterprise securities		—		5,951		—		5,951
Money market funds		—		1,754		—		1,754

	$	101,054	$	9,175	$	—	$	110,229


	Fair value measurements at December 31, 2011 using:
	Level 1		Level 2		Level 3		Total estimated fair value
	Level 1		Level 2		Level 3		Total estimated fair value
Cash	$	25,359	$	—	$	—	$	25,359
U.S. Treasury securities		3,267		—		—		3,267
Corporate debt securities		—		27,208		—		27,208
Municipal securities		—		4,315		—		4,315
Government-sponsored enterprise securities		—		19,050		—		19,050
Money market funds		—		22,753		—		22,753
Bank certificates of deposit		—		3,050		—		3,050

	$	28,626	$	76,376	$	—	$	105,002

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 6.H.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13728-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 7
-Footnote 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section H
-Subsection 3

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 1
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 8, 9, 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Employee Benefit Plans

12 Months Ended

Dec. 29, 2012

Employee Benefit Plans

5.	Employee Benefit Plans

Retirement Plans – We have a voluntary defined contribution retirement 401(k) plan whereby we match employee contributions. In 2012 and 2011, we provided a matching contribution at 1.5% of eligible employee compensation and made contributions to the plan of approximately $0.5 million in both periods. There were no employer matching contributions made to the plan in 2010. Certain of our foreign employees participate in defined benefit pension plans. The related expense and benefit obligation of these plans were not significant for any period presented.

Retiree Medical Benefits – We provide post-retirement health benefits to certain executives and directors under a noncontributory plan. The net periodic benefit cost was $0.3 million, $0.4 million and $0.3 million in 2012, 2011 and 2010, respectively. We fund benefits as costs are incurred and as a result there are no plan assets.

The weighted average discount rate used in determining the accumulated post-retirement benefit obligation was 3.7% in 2012, 4.2% in 2011 and 5.4% in 2010. Annual rates of increase of the cost of health benefits were assumed to be 9.0% in 2013. These rates were then assumed to decrease 0.5% per year to 5.0% in 2021 and remain level thereafter. A one percent increase (decrease) in health care cost trend rates would increase (decrease) the 2012 net periodic benefit cost by approximately $13,000 ($13,000) and the accumulated post-retirement benefit obligation as of December 29, 2012, by approximately $322,000 ($269,000).

The following table sets forth the post-retirement benefit obligation, funded status and the liability we have recorded in our consolidated balance sheets:


(in thousands)	2012			2011
Accumulated benefit obligation at beginning of year	$	2,909		$	3,909
Service cost		16			20
Interest cost		120			208
Actuarial gain		(617	)		(1,137	)
Benefits paid		(62	)		(91	)

Accumulated benefit obligation at end of year		2,366			2,909
Plan assets at end of year		—			—

Funded status	$	(2,366	)	$	(2,909	)

Deferred Compensation – The Cohu, Inc. Deferred Compensation Plan allows certain of our officers to defer a portion of their current compensation. We have purchased life insurance policies on the participants with Cohu as the named beneficiary. Participant contributions, distributions and investment earnings and losses are accumulated in a separate account for each participant. At December 29, 2012 and December 31, 2011, the payroll liability to participants, included in accrued compensation and benefits in the consolidated balance sheet, was approximately $2.1 million and $2.0 million and the cash surrender value of the related life insurance policies included in other current assets was approximately $1.7 million and $1.6 million, respectively.

Employee Stock Purchase Plan – The Cohu, Inc. 1997 Employee Stock Purchase Plan (“the Plan”) provides for the issuance of a maximum of 1,900,000 shares of our common stock. Under the Plan, eligible employees may purchase shares of common stock through payroll deductions. The price paid for the common stock is equal to 85% of the fair market value of our common stock on specified dates. In 2012, 2011, and 2010, 151,812, 120,240 and 112,745 shares, respectively, were issued under the Plan. At December 29, 2012, there were 485,542 shares reserved for issuance under the Plan.

Stock Options – Under our equity incentive plans, stock options may be granted to employees, consultants and outside directors to purchase a fixed number of shares of our common stock at prices not less than 100% of the fair market value at the date of grant. Options generally vest and become exercisable after one year or in four annual increments beginning one year after the grant date and expire ten years from the grant date. At December 29, 2012, 1,931,575 shares were available for future equity grants under the Cohu, Inc. 2005 Equity Incentive Plan. We have historically issued new shares of Cohu common stock upon share option exercise.

Stock option activity under our share-based compensation plans was as follows:


	2012					2011					2010
(in thousands, except per share data)	Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price
(in thousands, except per share data)	Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price
Outstanding, beginning of year		3,112		$	13.01		3,210		$	12.89		3,221		$	12.87
Granted		437		$	10.50		157		$	13.33		380		$	13.77
Exercised		(73	)	$	8.26		(123	)	$	9.03		(263	)	$	10.92
Canceled		(363	)	$	14.29		(132	)	$	14.24		(128	)	$	19.06

Outstanding, end of year		3,113		$	12.62		3,112		$	13.01		3,210		$	12.89

Options exercisable at year end		2,209		$	13.52		2,112		$	14.44		1,857		$	15.26

The aggregate intrinsic value of options exercised during 2012, 2011 and 2010 was approximately $0.2 million, $0.6 million, and $0.8 million, respectively. At December 29, 2012, the aggregate intrinsic value of options outstanding, vested and expected to vest were each approximately $2.8 million and the aggregate intrinsic value of options exercisable was approximately $1.9 million.

Information about stock options outstanding at December 29, 2012 is as follows (options in thousands):


	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Approximate Wt. Avg. Remaining Life (Years)		Wt. Avg. Ex. Price		Number Exercisable		Wt. Avg. Ex. Price



$ 7.32 - $10.83		1,317		7.2	$	8.33		641	$	7.39
$10.84 - $16.26		1,001		5.0	$	14.49		773	$	14.64
$16.27 - $24.41		790		2.3	$	17.33		790	$	17.33
$24.42 - $36.63		5		2.5	$	25.70		5	$	25.70

		3,113		5.2	$	12.62		2,209	$	13.52

Restricted Stock Units – Under our equity incentive plans, restricted stock units may be granted to employees, consultants and outside directors. Restricted stock units vest over either a one-year or a four-year period from the date of grant. Prior to vesting, restricted stock units do not have dividend equivalent rights, do not have voting rights and the shares underlying the restricted stock units are not considered issued and outstanding. Shares of our common stock will be issued on the date the restricted stock units vest.

Restricted stock unit activity under our share-based compensation plans was as follows:


	2012					2011					2010
(in thousands, except per share data)	Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value
(in thousands, except per share data)	Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value
Outstanding, beginning of year		299		$	12.98		373		$	13.35		155		$	14.60
Granted		462		$	9.57		75		$	13.00		323		$	12.90
Vested		(108	)	$	13.27		(139	)	$	13.91		(101	)	$	14.68
Canceled		(38	)	$	13.92		(10	)	$	13.41		(4	)	$	15.40

Outstanding, end of year		615		$	10.54		299		$	12.98		373		$	13.35

Equity-Based Performance Stock Units – In March 2012, we granted equity-based performance units covering 128,916 shares of our common stock to certain employees. The number of shares of stock ultimately issued to participants will depend upon the extent to which the financial performance goals set by our Board of Directors are met. The award measurement period is based on a one-year period which ends on December 29, 2012. Based upon the level of achievement of performance goals the number of shares we will issue can range from 0% up to 150% of the number of shares under each grant which will vest over 3 years from the date of initial grant. We record a provision for equity-based performance units outstanding based on our current assessment of achievement of the performance goals. Shares of our common stock will be issued on the date the equity-based performance units vest.

Share-based Compensation – We estimate the fair value of each share-based award on the grant date using the Black-Scholes valuation model. Option valuation models, including Black-Scholes, require the input of highly subjective assumptions, and changes in the assumptions used can materially affect the grant date fair value of an award. These assumptions include the risk-free rate of interest, expected dividend yield, expected volatility, and the expected life of the award. The risk-free rate of interest is based on the U.S. Treasury rates appropriate for the expected term of the award as of the grant date. Expected dividends are based, primarily, on historical factors related to our common stock. Expected volatility is based on historic, weekly stock price observations of our common stock during the period immediately preceding the share-based award grant that is equal in length to the award’s expected term. We believe that historical volatility is the best estimate of future volatility. Expected life of the award is based on historical option exercise data. Estimated forfeitures are required to be included as a part of the grant date expense estimate. We used historical data to estimate expected employee behaviors related to option exercises and forfeitures.

Share-based compensation expense related to restricted stock unit awards is calculated based on the market price of our common stock on the date of grant, reduced by the present value of dividends expected to be paid on our common stock prior to vesting of the restricted stock unit.

The following weighted average assumptions were used to value share-based awards granted:


Employee Stock Purchase Plan	2012	2011	2010
Dividend yield	2.4%	1.9%	1.8%
Expected volatility	43.6%	42.4%	48.2%
Risk-free interest rate	0.1%	0.1%	0.2%
Expected term of options	0.5 years	0.5 years	0.5 years
Weighted-average grant date fair value per share	$2.78	$3.77	$3.90


Employee Stock Options	2012	2011	2010
Dividend yield	2.1%	2.0%	1.6%
Expected volatility	46.3%	45.8%	46.6%
Risk-free interest rate	1.2%	1.9%	1.6%
Expected term of options	6.25 years	6.0 years	5.9 years
Weighted-average grant date fair value per share	$3.87	$5.06	$5.39

Restricted Stock Units	2012	2011	2010
Dividend yield	2.3%	1.8%	1.7%

Performance Stock Units	2012
Dividend yield	2.3%

Reported share-based compensation is classified in the consolidated financial statements as follows:


(in thousands)	2012		2011		2010
Cost of sales	$	417	$	420	$	297
Research and development		1,364		1,356		1,121
Selling, general and administrative		2,840		2,511		2,125

Total share-based compensation		4,621		4,287		3,543
Income tax benefit		—		—		—

Total share-based compensation, net of tax	$	4,621	$	4,287	$	3,543

At December 29, 2012, excluding a reduction for forfeitures, we had approximately $2.8 million of pre-tax unrecognized compensation cost related to unvested stock options which is expected to be recognized over a weighted-average period of approximately 1.5 years.

At December 29, 2012, excluding a reduction for forfeitures, we had approximately $5.9 million of pre-tax unrecognized compensation cost related to unvested restricted stock units and performance stock units which is expected to be recognized over a weighted-average period of approximately 2.3 years.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes

12 Months Ended

Dec. 29, 2012

Income Taxes

6.	Income Taxes

Significant components of the provision (benefit) for income taxes are as follows:


(in thousands)	2012			2011			2010
Current:
U.S. Federal	$	(1,898	)	$	(90	)	$	1,239
U.S. State		(388	)		(250	)		(71	)
Foreign		831			4,075			6,397

Total current		(1,455	)		3,735			7,565
Deferred:
U.S. Federal		1,890			(977	)		(1,519	)
U.S. State		186			(4	)		(207	)
Foreign		(1,495	)		(695	)		(245	)

Total deferred		581			(1,676	)		(1,971	)

	$	(874	)	$	2,059		$	5,594

Income (loss) before income taxes consisted of the following:


(in thousands)	2012			2011		2010
U.S.	$	(10,189	)	$	8,154	$	7,059
Foreign		(2,928	)		9,624		23,179

Total	$	(13,117	)	$	17,778	$	30,238

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting and tax purposes. Significant components of our deferred tax assets and liabilities were as follows:


(in thousands)	2012			2011
Deferred tax assets:
Inventory, receivable and warranty reserves	$	11,434		$	12,604
Net operating loss carryforwards		2,299			1,069
Tax credit carryforwards		7,764			7,213
Accrued employee benefits		2,167			2,233
Deferred profit		502			688
Stock-based compensation		3,409			2,715
Acquisition basis differences		2,226			2,369
Depreciation and fixed asset related		318			—
Other		243			207

Gross deferred tax assets		30,362			29,098
Less valuation allowance		(24,948	)		(22,352	)

Total deferred tax assets		5,414			6,746
Deferred tax liabilities:
Depreciation and fixed asset related		—			211
Gain on facilities sale		2,792			2,788
Acquisition basis differences		9,340			9,591
Other		283			252

Total deferred tax liabilities		12,415			12,842

Net deferred tax liabilities	$	(7,001	)	$	(6,096	)

Companies are required to assess whether a valuation allowance should be recorded against their deferred tax assets (“DTAs”) based on the consideration of all available evidence, using a “more likely than not” realization standard. The four sources of taxable income that must be considered in determining whether DTAs will be realized are, (1) future reversals of existing taxable temporary differences (i.e. offset of gross deferred tax assets against gross deferred tax liabilities); (2) taxable income in prior carryback years, if carryback is permitted under the tax law; (3) tax planning strategies and (4) future taxable income exclusive of reversing temporary differences and carryforwards.

In assessing whether a valuation allowance is required, significant weight is to be given to evidence that can be objectively verified. We have evaluated our DTAs each reporting period, including an assessment of our cumulative income or loss over the prior three-year period and future periods, to determine if a valuation allowance was required. A significant negative factor in our assessment was Cohu’s three-year cumulative U.S. loss history at the end of the 2009 and 2010 fiscal year periods.

After a review of the four sources of taxable income described above and in view of our three-year cumulative U.S. loss, we recorded an increase in our valuation allowance on U.S. DTAs, with a corresponding charge to our income tax provision, of approximately $19.6 million in the second quarter of fiscal 2009.

Notwithstanding our 36-month domestic, cumulative GAAP pretax income of approximately $5.0 million at the end of 2012, with (i) our operating loss in 2012, (ii) weak business conditions in our primary business segment and (iii) our significant gross deferred tax assets we were unable to conclude at December 29, 2012 that it was “more likely than not” that our DTAs would be realized and will only reverse the valuation allowance and reinstate DTAs to the extent we accrue taxes on future income. We will evaluate the realizability of our DTAs at the end of each quarterly reporting period in 2013 and should circumstances change it is possible the remaining valuation allowance, or a portion thereof, will be reversed during 2013.

Our valuation allowance on DTAs at December 29, 2012 and December 31, 2011 was approximately $24.9 million and $22.4 million, respectively. The remaining gross DTAs for which a valuation allowance was not recorded are realizable through future reversals of existing taxable temporary differences or loss carryback. As the realization of DTAs is determined by tax jurisdiction, the significant deferred tax liability recorded as part of the 2008 acquisition of Rasco, a German corporation, was not a source of taxable income in assessing the realization of our DTAs in the U.S.

The reconciliation of income tax computed at the U.S. federal statutory tax rate to the provision (benefit) for income taxes is as follows:


(in thousands)	2012			2011			2010
Tax provision (credit) at U.S. 35% statutory rate	$	(4,591	)	$	6,223		$	10,583
State income taxes, net of federal tax benefit		(645	)		(941	)		95
Settlements, adjustments and releases from statute expirations		367			(791	)		(712	)
Change in effective tax rate for deferred balances		346			—			638
Federal tax credits		—			(707	)		(688	)
Stock-based compensation on which no tax benefit provided		177			202			55
Change in valuation allowance		2,614			(483	)		(2,027	)
Foreign income taxed at different rates		(227	)		(726	)		(1,740	)
Non-deductible transaction costs		700			—			—
Other, net		385			(718	)		(610	)

	$	(874	)	$	2,059		$	5,594

State income taxes, net of federal benefit, have been reduced by research tax credits totaling approximately $0.6 million in 2012, 2011 and 2010.

At December 29, 2012, we had state and foreign net operating loss carryforwards of approximately $21.7 million and $3.7 million, respectively, that expire in various tax years through 2032 or have no expiration date. We also have federal and state tax credit carryforwards at December 29, 2012 of approximately $3.0 million and $11.2 million, respectively, certain of which expire in various tax years beginning in 2014 through 2032 or have no expiration date. The federal credit carryforward and state net operating loss and credit carryforwards are subject to annual limitations under Sections 382 and 383 of the Internal Revenue Code and applicable state tax law.

The American Taxpayer Relief Act of 2012, which reinstated the United States federal research and development tax credit retroactively from January 1, 2012 through December 31, 2012, was not enacted into law until the first quarter of 2013. Therefore, the expected tax benefit, if any, resulting from such reinstatement for fiscal 2012 will not be reflected in the Company’s income tax provision until 2013.

U.S. income taxes have not been provided on approximately $16 million of accumulated undistributed earnings of certain foreign subsidiaries, as we currently intend to indefinitely reinvest these earnings in operations outside the U.S. It is not practicable to estimate the amount of tax that might be payable if some or all of such earnings were to be remitted. We have certain tax holidays or incentives with respect to our operations in Singapore and the Philippines. These holidays or incentives require compliance with certain conditions and expire at various dates through 2020. The impact of these holidays or incentives on net income was not significant for fiscal years ended December 2012, 2011 and 2010.

A reconciliation of our gross unrecognized tax benefits is as follows:


(in thousands)	2012			2011			2010
Balance at beginning of year	$	5,381		$	5,069		$	4,886
Gross additions for tax positions of current year		776			1,455			578
Gross additions (reductions) for tax positions of prior years		195			126			(23	)
Reductions as a result of a lapse of the statute of limitations		(272	)		(1,269	)		(372	)

Balance at end of year	$	6,080		$	5,381		$	5,069

If the unrecognized tax benefits at December 29, 2012 are ultimately recognized, approximately $2.5 million ($3.1 million at December 31, 2011) would result in a reduction in our income tax expense and effective tax rate. We are unable to estimate the range of any reasonably possible increase or decrease in our gross unrecognized tax benefits over the next 12 months. However, we do not expect any such outcome will result in a material change to our financial condition or results of operations.

We recognize interest and penalties related to unrecognized tax benefits in income tax expense. Cohu had approximately $0.4 million accrued for the payment of interest and penalties at December 29, 2012 and December 31, 2011. Interest expense recognized in 2012, 2011 and 2010 was approximately $0.1 million, $0.2 million and $0.1 million, respectively.

Our U.S. federal and state income tax returns for years after 2008 and 2007, respectively, remain open to examination, subject to the statute of limitations. Net operating loss and credit carryforwards arising prior to these years are also open to examination if and when utilized. The statute of limitations for the assessment and collection of income taxes related to our foreign tax returns varies by country. In the foreign countries where we have significant operations these time periods generally range from four to six years after the year for which the tax is due.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Segment and Related Information

12 Months Ended

Dec. 29, 2012

Segment and Related Information

7.	Segment and Related Information

Our reportable segments are business units that offer different products and are managed separately because each business requires different technology and marketing strategies. Our three segments are: semiconductor equipment, microwave communications and video cameras.

The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies. We allocate resources and evaluate the performance of segments based on profit or loss from operations, excluding interest, corporate expenses and unusual gains or losses. Intersegment sales were not significant for any period.

Financial information by industry segment is presented below:


(in thousands)	2012			2011			2010
Net sales by segment:
Semiconductor equipment	$	179,449		$	260,648		$	273,566
Microwave communications		26,863			29,967			31,705
Video cameras		14,850			18,353			17,396

Total consolidated net sales and net sales for reportable segments	$	221,162		$	308,968		$	322,667


Segment profit (loss):
Semiconductor equipment	$	(5,331	)	$	20,040		$	29,654
Microwave communications		(847	)		1,510			3,679
Video cameras		(121	)		807			561

Profit (loss) for reportable segments		(6,299	)		22,357			33,894
Other unallocated amounts:
Corporate expenses ⁽¹⁾		(7,785	)		(5,021	)		(4,217	)
Interest and other income		967			442			561

Income (loss) from operations before income taxes	$	(13,117	)	$	17,778		$	30,238

(1)	Increase in corporate expense in 2012 was primarily a result of $2.3 million in Ismeca acquisition related costs.


(in thousands)	2012		2011		2010
Depreciation and amortization by segment deducted in arriving at profit (loss):
Semiconductor equipment	$	4,506	$	4,313	$	3,596
Microwave communications		652		893		1,096
Video cameras		188		216		237

		5,346		5,422		4,929
Intangible amortization		4,057		4,645		6,059

Total depreciation and amortization for reportable segments	$	9,403	$	10,067	$	10,988

Capital expenditures by segment:
Semiconductor equipment	$	2,759	$	991	$	3,973
Microwave communications		481		313		440
Video cameras		27		109		166

Total consolidated capital expenditures	$	3,267	$	1,413	$	4,579


(in thousands)	2012		2011		2010
Total assets by segment:
Semiconductor equipment	$	281,173	$	255,189	$	255,246
Microwave communications		22,635		21,968		27,812
Video cameras		9,424		11,598		11,092

Total assets for reportable segments		313,232		288,755		294,150
Corporate, principally cash and investments and deferred taxes		21,641		72,853		71,893

Total consolidated assets	$	334,873	$	361,608	$	366,043

Customers from the semiconductor equipment segment comprising 10% or greater of our consolidated net sales are summarized as follows:


	2012			2011			2010
Intel		39	%		36	%		26	%
Texas Instruments		*			11	%		14	%
* Less than 10% of net sales

Net sales to customers, attributed to countries based on product shipment destination, were as follows:


(in thousands)	2012		2011		2010
United States	$	57,193	$	77,563	$	64,992
Malaysia		40,326		48,624		52,539
China		31,973		37,824		50,454
Costa Rica		22,934		14,152		6,778
Philippines		22,507		40,368		51,659
Rest of the World		46,229		90,437		96,245

Total	$	221,162	$	308,968	$	322,667

Geographic location of our property, plant and equipment and other long-lived assets was as follows:


(in thousands)	2012		2011
Property, plant and equipment:
United States	$	22,621	$	24,138
Germany		8,802		8,625
Asia (Singapore, Taiwan and the Philippines)		4,041		4,218

Total, net	$	35,464	$	36,981

Goodwill and other intangible assets:
Germany	$	53,190	$	56,089
United States		17,985		17,241
Singapore		6,558		6,558

Total, net	$	77,733	$	79,888

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stockholder Rights Plan

12 Months Ended

Dec. 29, 2012

Stockholder Rights Plan

8.	Stockholder Rights Plan

In November, 1996, we adopted a Stockholder Rights Plan (“Rights Plan”) and declared a dividend distribution of one Preferred Stock Purchase Right (“Right”) for each share of common stock, payable to holders of record on December 3, 1996. Under the Rights Plan, each stockholder received one Right for each share of common stock owned. Each Right entitled the holder to buy one one-hundredth (1/100) of a share of Cohu’s Series A Preferred Stock for $90. As a result of the two-for-one stock split in September, 1999, each share of common stock was associated with one-half of a Right entitling the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $45. In November, 2006, we amended and restated our existing Rights Plan to extend its term to November 9, 2016 and make certain other changes. Pursuant to the amendment, to reflect the increase in the price of our common stock since the adoption of the Rights Plan, the exercise price of each Right was increased to $190. Consequently, each one-half of a Right entitles the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $95. The Rights are not presently exercisable and will only become exercisable following the occurrence of certain specified events. If these specified events occur, each Right will be adjusted to entitle its holder to receive, upon exercise, common stock having a value equal to two times the exercise price of the Right, or each Right will be adjusted to entitle its holder to receive common stock of the acquiring company having a value equal to two times the exercise price of the Right, depending on the circumstances. The Rights expire on November 9, 2016, and we may redeem them for $0.001 per Right. The Rights do not have voting or dividend rights and, until they become exercisable, have no dilutive effect on our earnings per share.

Commitments and Contingencies

12 Months Ended

Dec. 29, 2012

Commitments and Contingencies

9.	Commitments and Contingencies

We lease certain of our facilities and equipment under non-cancelable operating leases. Rental expense was $1.1 million in both 2012 and 2011 and $1.3 million in 2010. Future minimum lease payments at December 29, 2012 are as follows:


(in thousands)	2013		2014		2015		2016		2017		Thereafter		Total
Non-cancelable operating leases	$	993	$	596	$	72	$	—	$	—	$	—	$	1,661

From time-to-time we are involved in various legal proceedings, examinations by various tax authorities and claims that have arisen in the ordinary course of our businesses. Although the outcome of such legal proceedings, claims and examinations cannot be predicted with certainty, we do not believe any such matters exist at this time that will have a material adverse effect on our financial position or results of our operations.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Guarantees

12 Months Ended

Dec. 29, 2012

Guarantees

10.

Guarantees

Changes in accrued warranty during the three-year period ended December 29, 2012 were as follows:


(in thousands)	2012			2011			2010
Beginning balance	$	6,801		$	5,016		$	3,747
Warranty accruals		4,214			10,987			6,071
Warranty payments		(6,323	)		(9,202	)		(4,802	)

Ending balance	$	4,692		$	6,801		$	5,016

During the ordinary course of business, we provide standby letters of credit instruments to certain parties as required. At December 29, 2012, the maximum potential amount of future payments that we could be required to make under these standby letters of credit was approximately $0.6 million. We have not recorded any liability in connection with these arrangements beyond that required to appropriately account for the underlying transaction being guaranteed. We do not believe, based on historical experience and information currently available, that it is probable that any amounts will be required to be paid under these arrangements.

Related Party Transactions

12 Months Ended

Dec. 29, 2012

Related Party Transactions

11.

Related Party Transactions

James A. Donahue, Chairman, President and CEO of Cohu, and Steven J. Bilodeau, a member of the Cohu Board of Directors, were formerly members of the Board of Directors of Standard Microsystems Corporation (“SMSC”), a customer of our semiconductor equipment segment. SMSC was purchased by Microchip Technology Management Co. on August 2, 2012. During 2012, 2011 and 2010, total sales to SMSC were approximately $0.2 million, $0.5 million, and $0.4 million, respectively. William E. Bendush, a member of the Cohu Board of Directors since December 8, 2011, is a member of the Board of Directors of Microsemi Corporation (“MSC”), a customer of our semiconductor equipment segment. During 2012 and 2011 total sales to MSC were approximately $1.1 million and $1.7 million, respectively.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph b
-Article 3A

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Article 4

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 1-4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 29, 2012

Accumulated Other Comprehensive Income (Loss)

12.

Accumulated Other Comprehensive Income (Loss)

Components of accumulated other comprehensive income (loss), on an after-tax basis, were as follows:


(in thousands)	Before Tax amount			Tax (Expense) Benefit			Net-of-Tax Amount
Year Ended December 25, 2010
Foreign currency translation adjustments	$	(7,270	)	$	—		$	(7,270	)
Adjustments related to postretirement benefits		(1,386	)		(120	)		(1,506	)
Change in unrealized gain/loss on investments		(134	)		51			(83	)

Other Comprehensive Loss	$	(8,790	)	$	(69	)	$	(8,859	)


Year Ended December 31, 2011
Foreign currency translation adjustments	$	(1,076	)	$	—		$	(1,076	)
Adjustments related to postretirement benefits		1,267			—			1,267
Change in unrealized gain/loss on investments		(6	)		—			(6	)

Other Comprehensive Income	$	185		$	—		$	185


Year Ended December 29, 2012
Foreign currency translation adjustments	$	1,689		$	—		$	1,689
Adjustments related to postretirement benefits		362			(240	)		122
Change in unrealized gain/loss on investments		(16	)		—			(16	)

Other Comprehensive Income	$	2,035		$	(240	)	$	1,795

- Definition

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e689-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669619-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e716-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e640-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e709-108580

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Reclassification Adjustments
-URI http://asc.fasb.org/extlink&oid=6522872

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e681-108580

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 14-26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Quarterly Financial Data

12 Months Ended

Dec. 29, 2012

Quarterly Financial Data

13.

Quarterly Financial Data (Unaudited)


Quarter		First (a)			Second (a)			Third (a)			Fourth (a)			Year
(in thousands, except per share data)

Net sales:	2012	$	53,296		$	59,404		$	57,748		$	50,714		$	221,162
	2011	$	89,700		$	80,896		$	71,813		$	66,559		$	308,968
Gross profit:	2012	$	15,539		$	17,664		$	18,126		$	16,649		$	67,978
	2011	$	28,815		$	26,547		$	23,355		$	21,412		$	100,129
Net income (loss):	2012	$	(3,224	)	$	(2,109	)	$	(1,749	)	$	(5,161	)	$	(12,243	)
	2011	$	6,574		$	5,050		$	3,376		$	719		$	15,719

Net income (loss) per share (b):
Basic	2012	$	(0.13	)	$	(0.09	)	$	(0.07	)	$	(0.21	)	$	(0.50	)
	2011	$	0.27		$	0.21		$	0.14		$	0.03		$	0.65
Diluted	2012	$	(0.13	)	$	(0.09	)	$	(0.07	)	$	(0.21	)	$	(0.50	)
	2011	$	0.27		$	0.21		$	0.14		$	0.03		$	0.64

(a)

All quarters presented above were comprised of 13 weeks except the fourth quarter of 2011 which was comprised of 14 weeks.

(b)

The sum of the four quarters may not agree to the year total due to rounding within a quarter.

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References + Details

Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 29, 2012

Schedule II Valuation and Qualifying Accounts

COHU, INC.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

(in thousands)


Description	Balance at Beginning of Year		Additions Not Charged to Expense			Additions (Reductions) Charged (Credited) to Expense			Deductions/ Write-offs		Balance at End of Year
Allowance for doubtful accounts:
Year ended December 25, 2010	$	1,013	$	(22)	(1)	$	(429	)	$	6	$	556
Year ended December 31, 2011	$	556	$	(2)	(1)	$	(25	)	$	66	$	463
Year ended December 29, 2012	$	463	$	1	(1)	$	(57	)	$	99	$	308

Reserve for excess and obsolete inventories:
Year ended December 25, 2010	$	25,680	$	167	(1)	$	1,743		$	3,807	$	23,783
Year ended December 31, 2011	$	23,783	$	88	(1)	$	5,796		$	4,092	$	25,575
Year ended December 29, 2012	$	25,575	$	611	(2)	$	8,884		$	7,008	$	28,062

(1)	Changes in reserve balances resulting from foreign currency impact.

(2)	Changes in reserve balances resulting from foreign currency impact and reclass from other reserves.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 29, 2012

Basis of Presentation

Income (Loss) Per Share

The following table reconciles the denominators used in computing basic and diluted income (loss) per share:


(in thousands)	2012		2011		2010
Weighted average common shares outstanding		24,459		24,134		23,732
Effect of dilutive stock options and restricted stock units		—		367		365

		24,459		24,501		24,097

Cash, Cash Equivalents and Short-term Investments

Fair Value of Financial Instruments

Concentration of Credit Risk

Inventories

Property, Plant and Equipment

Goodwill, Purchased Intangible Assets and Other Long-lived Assets

Product Warranty

Income Taxes

Contingencies and Litigation

Revenue Recognition

Advertising Costs

Advertising Costs – Advertising costs are expensed as incurred and were not material for all periods presented.

Share-based Compensation

Foreign Currency Translation

Comprehensive Income (Loss)

Comprehensive Income (Loss) – Our accumulated other comprehensive income (loss) totaled approximately

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2012

Computation of Basic and Diluted Income (Loss) Per Share

The following table reconciles the denominators used in computing basic and diluted income (loss) per share:


(in thousands)	2012		2011		2010
Weighted average common shares outstanding		24,459		24,134		23,732
Effect of dilutive stock options and restricted stock units		—		367		365

		24,459		24,501		24,097

Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2012

Changes in Carrying Value of Goodwill by Reportable Segment

Changes in the carrying value of goodwill by reportable segment during the years ended December 29, 2012 and December 31, 2011 were as follows (in thousands):


	Semiconductor Equipment			Microwave Communications			Total Goodwill
Balance, December 25, 2010	$	55,280		$	3,218		$	58,498
Impact of currency exchange		(408	)		(30	)		(438	)

Balance, December 31, 2011		54,872			3,188			58,060
Impact of currency exchange		648			48			696

Balance, December 29, 2012	$	55,520		$	3,236		$	58,756

Purchased Intangible Assets Subject to Amortization

Our purchased intangible assets, subject to amortization, were as follows (in thousands):


	December 29, 2012						December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization
	Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization
Rasco technology	$	32,399	$	16,452		4.0 years	$	31,737	$	12,149
Duma technology		864		120		2.6 years		—		—

	$	33,263	$	16,572			$	31,737	$	12,149

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References + Details

Cash, Cash Equivalents and Short-term Investments (Tables)

12 Months Ended

Dec. 29, 2012

Short-Term Investments by Security Type

Investments that we have classified as short-term, by security type, are as follows (in thousands):


	At December 29, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses ⁽¹⁾		Estimated Fair Value


Municipal securities	$	1,470	$	—	$	—	$	1,470
Government-sponsored enterprise securities		5,937		14		—		5,951

	$	7,407	$	14	$	—	$	7,421


	At December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value


U.S. Treasury securities	$	3,258	$	9	$	—	$	3,267
Corporate debt securities ⁽²⁾		22,454		6		2		22,458
Municipal securities		4,315		—		—		4,315
Government-sponsored enterprise securities		19,033		32		15		19,050
Bank certificates of deposit		2,650		—		—		2,650

	$	51,710	$	47	$	17	$	51,740

(1)

(2)	Corporate debt securities include investments in financial and other corporate institutions. No single issuer represents a significant portion of the total corporate debt securities portfolio.

Effective Maturities of Short-Term Investments

Effective maturities of short-term investments at December 29, 2012, were as follows:


(in thousands)	Amortized Cost		Estimated Fair Value
(in thousands)	Amortized Cost		Estimated Fair Value
Due in one year or less	$	7,407	$	7,421

Assets Measured at Fair Value on Recurring Basis

The following table summarizes, by major security type, our assets that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands):


	Fair value measurements at December 29, 2012 using:
	Level 1		Level 2		Level 3		Total estimated fair value
	Level 1		Level 2		Level 3		Total estimated fair value
Cash	$	101,054	$	—	$	—	$	101,054
Municipal securities		—		1,470		—		1,470
Government-sponsored enterprise securities		—		5,951		—		5,951
Money market funds		—		1,754		—		1,754

	$	101,054	$	9,175	$	—	$	110,229


	Fair value measurements at December 31, 2011 using:
	Level 1		Level 2		Level 3		Total estimated fair value
	Level 1		Level 2		Level 3		Total estimated fair value
Cash	$	25,359	$	—	$	—	$	25,359
U.S. Treasury securities		3,267		—		—		3,267
Corporate debt securities		—		27,208		—		27,208
Municipal securities		—		4,315		—		4,315
Government-sponsored enterprise securities		—		19,050		—		19,050
Money market funds		—		22,753		—		22,753
Bank certificates of deposit		—		3,050		—		3,050

	$	28,626	$	76,376	$	—	$	105,002

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 19, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 17
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-1
-Paragraph 21
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References + Details

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 29, 2012

Schedule of Post-Retirement Benefits Obligation to Funded Status and Liability

The following table sets forth the post-retirement benefit obligation, funded status and the liability we have recorded in our consolidated balance sheets:


(in thousands)	2012			2011
Accumulated benefit obligation at beginning of year	$	2,909		$	3,909
Service cost		16			20
Interest cost		120			208
Actuarial gain		(617	)		(1,137	)
Benefits paid		(62	)		(91	)

Accumulated benefit obligation at end of year		2,366			2,909
Plan assets at end of year		—			—

Funded status	$	(2,366	)	$	(2,909	)

Schedule of Stock Option Activity under Share-Based Compensation Plans

Stock option activity under our share-based compensation plans was as follows:


	2012					2011					2010
(in thousands, except per share data)	Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price
(in thousands, except per share data)	Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price		Shares			Wt. Avg. Ex. Price
Outstanding, beginning of year		3,112		$	13.01		3,210		$	12.89		3,221		$	12.87
Granted		437		$	10.50		157		$	13.33		380		$	13.77
Exercised		(73	)	$	8.26		(123	)	$	9.03		(263	)	$	10.92
Canceled		(363	)	$	14.29		(132	)	$	14.24		(128	)	$	19.06

Outstanding, end of year		3,113		$	12.62		3,112		$	13.01		3,210		$	12.89

Options exercisable at year end		2,209		$	13.52		2,112		$	14.44		1,857		$	15.26

Schedule of Stock Options Outstanding and Exercisable

Information about stock options outstanding at December 29, 2012 is as follows (options in thousands):


	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Approximate Wt. Avg. Remaining Life (Years)		Wt. Avg. Ex. Price		Number Exercisable		Wt. Avg. Ex. Price



$ 7.32 - $10.83		1,317		7.2	$	8.33		641	$	7.39
$10.84 - $16.26		1,001		5.0	$	14.49		773	$	14.64
$16.27 - $24.41		790		2.3	$	17.33		790	$	17.33
$24.42 - $36.63		5		2.5	$	25.70		5	$	25.70

		3,113		5.2	$	12.62		2,209	$	13.52

Schedule of Restricted Stock Unit Activity under Share-Based Compensation Plans

Restricted stock unit activity under our share-based compensation plans was as follows:


	2012					2011					2010
(in thousands, except per share data)	Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value
(in thousands, except per share data)	Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value		Units			Wt. Avg. Fair Value
Outstanding, beginning of year		299		$	12.98		373		$	13.35		155		$	14.60
Granted		462		$	9.57		75		$	13.00		323		$	12.90
Vested		(108	)	$	13.27		(139	)	$	13.91		(101	)	$	14.68
Canceled		(38	)	$	13.92		(10	)	$	13.41		(4	)	$	15.40

Outstanding, end of year		615		$	10.54		299		$	12.98		373		$	13.35

Schedule of Weighted Average Assumptions to Value Share-Based Awards Granted

The following weighted average assumptions were used to value share-based awards granted:


Employee Stock Purchase Plan	2012	2011	2010
Dividend yield	2.4%	1.9%	1.8%
Expected volatility	43.6%	42.4%	48.2%
Risk-free interest rate	0.1%	0.1%	0.2%
Expected term of options	0.5 years	0.5 years	0.5 years
Weighted-average grant date fair value per share	$2.78	$3.77	$3.90


Employee Stock Options	2012	2011	2010
Dividend yield	2.1%	2.0%	1.6%
Expected volatility	46.3%	45.8%	46.6%
Risk-free interest rate	1.2%	1.9%	1.6%
Expected term of options	6.25 years	6.0 years	5.9 years
Weighted-average grant date fair value per share	$3.87	$5.06	$5.39

Restricted Stock Units	2012	2011	2010
Dividend yield	2.3%	1.8%	1.7%

Performance Stock Units	2012
Dividend yield	2.3%

Schedule of Reported Share-Based Compensation in Consolidated Financial Statements

Reported share-based compensation is classified in the consolidated financial statements as follows:


(in thousands)	2012		2011		2010
Cost of sales	$	417	$	420	$	297
Research and development		1,364		1,356		1,121
Selling, general and administrative		2,840		2,511		2,125

Total share-based compensation		4,621		4,287		3,543
Income tax benefit		—		—		—

Total share-based compensation, net of tax	$	4,621	$	4,287	$	3,543

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Income Taxes (Tables)

12 Months Ended

Dec. 29, 2012

Significant Components of Provision (Benefit) for Income Taxes

Significant components of the provision (benefit) for income taxes are as follows:


(in thousands)	2012			2011			2010
Current:
U.S. Federal	$	(1,898	)	$	(90	)	$	1,239
U.S. State		(388	)		(250	)		(71	)
Foreign		831			4,075			6,397

Total current		(1,455	)		3,735			7,565
Deferred:
U.S. Federal		1,890			(977	)		(1,519	)
U.S. State		186			(4	)		(207	)
Foreign		(1,495	)		(695	)		(245	)

Total deferred		581			(1,676	)		(1,971	)

	$	(874	)	$	2,059		$	5,594

Income (Loss) Before Income Taxes

Income (loss) before income taxes consisted of the following:


(in thousands)	2012			2011		2010
U.S.	$	(10,189	)	$	8,154	$	7,059
Foreign		(2,928	)		9,624		23,179

Total	$	(13,117	)	$	17,778	$	30,238

Significant Components of Deferred Tax Assets and Liabilities


(in thousands)	2012			2011
Deferred tax assets:
Inventory, receivable and warranty reserves	$	11,434		$	12,604
Net operating loss carryforwards		2,299			1,069
Tax credit carryforwards		7,764			7,213
Accrued employee benefits		2,167			2,233
Deferred profit		502			688
Stock-based compensation		3,409			2,715
Acquisition basis differences		2,226			2,369
Depreciation and fixed asset related		318			—
Other		243			207

Gross deferred tax assets		30,362			29,098
Less valuation allowance		(24,948	)		(22,352	)

Total deferred tax assets		5,414			6,746
Deferred tax liabilities:
Depreciation and fixed asset related		—			211
Gain on facilities sale		2,792			2,788
Acquisition basis differences		9,340			9,591
Other		283			252

Total deferred tax liabilities		12,415			12,842

Net deferred tax liabilities	$	(7,001	)	$	(6,096	)

Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes

The reconciliation of income tax computed at the U.S. federal statutory tax rate to the provision (benefit) for income taxes is as follows:


(in thousands)	2012			2011			2010
Tax provision (credit) at U.S. 35% statutory rate	$	(4,591	)	$	6,223		$	10,583
State income taxes, net of federal tax benefit		(645	)		(941	)		95
Settlements, adjustments and releases from statute expirations		367			(791	)		(712	)
Change in effective tax rate for deferred balances		346			—			638
Federal tax credits		—			(707	)		(688	)
Stock-based compensation on which no tax benefit provided		177			202			55
Change in valuation allowance		2,614			(483	)		(2,027	)
Foreign income taxed at different rates		(227	)		(726	)		(1,740	)
Non-deductible transaction costs		700			—			—
Other, net		385			(718	)		(610	)

	$	(874	)	$	2,059		$	5,594

Reconciliation of Gross Unrecognized Tax Benefits

A reconciliation of our gross unrecognized tax benefits is as follows:


(in thousands)	2012			2011			2010
Balance at beginning of year	$	5,381		$	5,069		$	4,886
Gross additions for tax positions of current year		776			1,455			578
Gross additions (reductions) for tax positions of prior years		195			126			(23	)
Reductions as a result of a lapse of the statute of limitations		(272	)		(1,269	)		(372	)

Balance at end of year	$	6,080		$	5,381		$	5,069

Segment and Related Information (Tables)

12 Months Ended

Dec. 29, 2012

Financial Information by Industry Segment

Financial information by industry segment is presented below:


(in thousands)	2012			2011			2010
Net sales by segment:
Semiconductor equipment	$	179,449		$	260,648		$	273,566
Microwave communications		26,863			29,967			31,705
Video cameras		14,850			18,353			17,396

Total consolidated net sales and net sales for reportable segments	$	221,162		$	308,968		$	322,667


Segment profit (loss):
Semiconductor equipment	$	(5,331	)	$	20,040		$	29,654
Microwave communications		(847	)		1,510			3,679
Video cameras		(121	)		807			561

Profit (loss) for reportable segments		(6,299	)		22,357			33,894
Other unallocated amounts:
Corporate expenses ⁽¹⁾		(7,785	)		(5,021	)		(4,217	)
Interest and other income		967			442			561

Income (loss) from operations before income taxes	$	(13,117	)	$	17,778		$	30,238

(1)	Increase in corporate expense in 2012 was primarily a result of $2.3 million in Ismeca acquisition related costs.


(in thousands)	2012		2011		2010
Depreciation and amortization by segment deducted in arriving at profit (loss):
Semiconductor equipment	$	4,506	$	4,313	$	3,596
Microwave communications		652		893		1,096
Video cameras		188		216		237

		5,346		5,422		4,929
Intangible amortization		4,057		4,645		6,059

Total depreciation and amortization for reportable segments	$	9,403	$	10,067	$	10,988

Capital expenditures by segment:
Semiconductor equipment	$	2,759	$	991	$	3,973
Microwave communications		481		313		440
Video cameras		27		109		166

Total consolidated capital expenditures	$	3,267	$	1,413	$	4,579


(in thousands)	2012		2011		2010
Total assets by segment:
Semiconductor equipment	$	281,173	$	255,189	$	255,246
Microwave communications		22,635		21,968		27,812
Video cameras		9,424		11,598		11,092

Total assets for reportable segments		313,232		288,755		294,150
Corporate, principally cash and investments and deferred taxes		21,641		72,853		71,893

Total consolidated assets	$	334,873	$	361,608	$	366,043

Summary of Semiconductor Equipment Net Sales

Customers from the semiconductor equipment segment comprising 10% or greater of our consolidated net sales are summarized as follows:


	2012			2011			2010
Intel		39	%		36	%		26	%
Texas Instruments		*			11	%		14	%
* Less than 10% of net sales

Summary of Net Sales to Customers, Attributed to Countries

Net sales to customers, attributed to countries based on product shipment destination, were as follows:


(in thousands)	2012		2011		2010
United States	$	57,193	$	77,563	$	64,992
Malaysia		40,326		48,624		52,539
China		31,973		37,824		50,454
Costa Rica		22,934		14,152		6,778
Philippines		22,507		40,368		51,659
Rest of the World		46,229		90,437		96,245

Total	$	221,162	$	308,968	$	322,667

Summary of Property, Plant and Equipment in Geographical Area

Geographic location of our property, plant and equipment and other long-lived assets was as follows:


(in thousands)	2012		2011
Property, plant and equipment:
United States	$	22,621	$	24,138
Germany		8,802		8,625
Asia (Singapore, Taiwan and the Philippines)		4,041		4,218

Total, net	$	35,464	$	36,981

Goodwill and other intangible assets:
Germany	$	53,190	$	56,089
United States		17,985		17,241
Singapore		6,558		6,558

Total, net	$	77,733	$	79,888

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 29, 2012

Future Minimum Lease Payments

Future minimum lease payments at December 29, 2012 are as follows:


(in thousands)	2013		2014		2015		2016		2017		Thereafter		Total
Non-cancelable operating leases	$	993	$	596	$	72	$	—	$	—	$	—	$	1,661

- Definition

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

+ References + Details

Guarantees (Tables)

12 Months Ended

Dec. 29, 2012

Changes in Accrued Warranty

Changes in accrued warranty during the three-year period ended December 29, 2012 were as follows:


(in thousands)	2012			2011			2010
Beginning balance	$	6,801		$	5,016		$	3,747
Warranty accruals		4,214			10,987			6,071
Warranty payments		(6,323	)		(9,202	)		(4,802	)

Ending balance	$	4,692		$	6,801		$	5,016

Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 29, 2012

Components of Accumulated Other Comprehensive Income (Loss)

Components of accumulated other comprehensive income (loss), on an after-tax basis, were as follows:


(in thousands)	Before Tax amount			Tax (Expense) Benefit			Net-of-Tax Amount
Year Ended December 25, 2010
Foreign currency translation adjustments	$	(7,270	)	$	—		$	(7,270	)
Adjustments related to postretirement benefits		(1,386	)		(120	)		(1,506	)
Change in unrealized gain/loss on investments		(134	)		51			(83	)

Other Comprehensive Loss	$	(8,790	)	$	(69	)	$	(8,859	)


Year Ended December 31, 2011
Foreign currency translation adjustments	$	(1,076	)	$	—		$	(1,076	)
Adjustments related to postretirement benefits		1,267			—			1,267
Change in unrealized gain/loss on investments		(6	)		—			(6	)

Other Comprehensive Income	$	185		$	—		$	185


Year Ended December 29, 2012
Foreign currency translation adjustments	$	1,689		$	—		$	1,689
Adjustments related to postretirement benefits		362			(240	)		122
Change in unrealized gain/loss on investments		(16	)		—			(16	)

Other Comprehensive Income	$	2,035		$	(240	)	$	1,795

Quarterly Financial Data (Tables)

12 Months Ended

Dec. 29, 2012

Summary of Quarterly Financial Data


Quarter		First (a)			Second (a)			Third (a)			Fourth (a)			Year
(in thousands, except per share data)

Net sales:	2012	$	53,296		$	59,404		$	57,748		$	50,714		$	221,162
	2011	$	89,700		$	80,896		$	71,813		$	66,559		$	308,968
Gross profit:	2012	$	15,539		$	17,664		$	18,126		$	16,649		$	67,978
	2011	$	28,815		$	26,547		$	23,355		$	21,412		$	100,129
Net income (loss):	2012	$	(3,224	)	$	(2,109	)	$	(1,749	)	$	(5,161	)	$	(12,243	)
	2011	$	6,574		$	5,050		$	3,376		$	719		$	15,719

Net income (loss) per share (b):
Basic	2012	$	(0.13	)	$	(0.09	)	$	(0.07	)	$	(0.21	)	$	(0.50	)
	2011	$	0.27		$	0.21		$	0.14		$	0.03		$	0.65
Diluted	2012	$	(0.13	)	$	(0.09	)	$	(0.07	)	$	(0.21	)	$	(0.50	)
	2011	$	0.27		$	0.21		$	0.14		$	0.03		$	0.64

(a)

All quarters presented above were comprised of 13 weeks except the fourth quarter of 2011 which was comprised of 14 weeks.

(b)

The sum of the four quarters may not agree to the year total due to rounding within a quarter.

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Number of common stock shares excluded from computation of diluted income per share		1,956,000	1,724,000
Net of allowance for doubtful accounts	$ 300	$ 500
Product warrant period	12- to 36-months
Largest amount of tax benefit likely of being realize upon settlement	50.00%
Minority portion of purchase price payable upon customer acceptance	20.00%
Majority portion of revenue recognized upon shipment and transfer of title	80.00%
Deferred revenue	$ 3,600	6,600
Deferred profit	2,139	2,821
Accumulated other comprehensive loss	1,783	(12)
Reserve for excess and obsolete inventories [Member]
Additions (Reductions) Charged (Credited) to Expense	$ 8,884	$ 5,796	$ 1,743
Minimum [Member] \| Buildings [Member]
Property, plant and equipment estimated useful lives	30 years
Minimum [Member] \| Building improvements [Member]
Property, plant and equipment estimated useful lives	5 years
Minimum [Member] \| Machinery, equipment and software [Member]
Property, plant and equipment estimated useful lives	3 years
Maximum [Member] \| Buildings [Member]
Property, plant and equipment estimated useful lives	40 years
Maximum [Member] \| Building improvements [Member]
Property, plant and equipment estimated useful lives	15 years
Maximum [Member] \| Machinery, equipment and software [Member]
Property, plant and equipment estimated useful lives	10 years

Summary of Significant Accounting Policies - Computation of Basic and Diluted Income (Loss) Per Share (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Earnings Per Share [Line Items]
Weighted average common shares outstanding	24,459	24,134	23,732
Effect of dilutive stock options and restricted stock units		367	365
Weighted average diluted shares used in computing income (loss) per share	24,459	24,501	24,097

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Subsequent Event - Additional Information (Detail) - Ismeca [Member] $ in Millions	12 Months Ended
	Dec. 29, 2012 USD ($)
Subsequent Event [Line Items]
Aggregate purchase price	$ 57.1
Initial purchase price	54.5
Purchase price adjustments	2.6
Acquisition related costs	$ 2.3

Goodwill and Purchased Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Goodwill	$ 58,060	$ 58,498
Impact of currency exchange	696	(438)
Goodwill	58,756	58,060
Semiconductor equipment [Member]
Segment Reporting Information [Line Items]
Goodwill	54,872	55,280
Impact of currency exchange	648	(408)
Goodwill	55,520	54,872
Microwave communications [Member]
Segment Reporting Information [Line Items]
Goodwill	3,188	3,218
Impact of currency exchange	48	(30)
Goodwill	$ 3,236	$ 3,188

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill and Purchased Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 17, 2012	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Intangible Assets [Line Items]
Rasco trade name		$ 2,300	$ 2,200
Amortization expenses related to intangible assets		4,057	$ 4,645	$ 6,059
2013		4,300
2014		4,300
2015		4,200
2016		$ 3,800
Duma technology [Member]
Intangible Assets [Line Items]
Purchase price of the assets acquired	$ 1,000
Amortization period of intangible assets	3 years	2 years 7 months 6 days
Maximum future payments required	$ 500

Goodwill and Purchased Intangible Assets - Purchased Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 17, 2012	Dec. 29, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 33,263	$ 31,737
Accumulated Amortization		16,572	12,149
Rasco technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		32,399	31,737
Accumulated Amortization		$ 16,452	12,149
Remaining Useful Life		4 years
Duma technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 864
Accumulated Amortization		$ 120
Remaining Useful Life	3 years	2 years 7 months 6 days

Cash, Cash Equivalents and Short-Term Investments - Short-Term Investments by Security Type (Detail) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 7,407	$ 51,710
Gross Unrealized Gains	14	47
Gross Unrealized Losses		17
Estimated Fair Value	7,421	51,740
Municipal securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,470	4,315
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value	1,470	4,315
Government-sponsored enterprise securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,937	19,033
Gross Unrealized Gains	14	32
Gross Unrealized Losses		15
Estimated Fair Value	$ 5,951	19,050
U.S. Treasury securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,258
Gross Unrealized Gains		9
Gross Unrealized Losses
Estimated Fair Value		3,267
Corporate debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		22,454
Gross Unrealized Gains		6
Gross Unrealized Losses		2
Estimated Fair Value		22,458
Bank certificates of deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		2,650
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value		$ 2,650

Cash, Cash Equivalents and Short-Term Investments - Short-Term Investments by Security Type (Parenthetical) (Detail) $ in Millions	Dec. 31, 2011 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized cost of investments with loss positions	$ 12.8
Fair value of investments with loss positions	$ 12.8

Cash, Cash Equivalents and Short-Term Investments - Effective Maturities of Short-Term Investments (Detail) $ in Thousands	Dec. 29, 2012 USD ($)
Amortized Cost [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities amortized cost, Due in one year or less	$ 7,407
Estimated Fair Value [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities fair value, Due in one year or less	$ 7,421

Cash, Cash Equivalents and Short-Term Investments - Additional Information (Detail) $ in Millions	Dec. 29, 2012 USD ($)
Investment [Line Items]
Variable rate demand note maturity year	2037
Variable rate demand notes [Member]
Investment [Line Items]
Securities amortized cost, Due in one year or less	$ 1.5
Securities fair value, Due in one year or less	$ 1.5

Employee Benefit Plans - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Matching contribution of eligible employee compensation, percent		1.50%	1.50%
Employer contributions to plan		$ 500,000	$ 500,000	$ 0
Net periodic benefit cost		$ 300,000	$ 400,000	$ 300,000
Weighted average discount rate of accumulated post-retirement benefit obligation		3.70%	4.20%	5.40%
Assumed annual rates of increase of cost of health benefits		9.00%
Assumed annual rate of decrease for cost of health benefits		0.50%
Defined benefit plan cost of health benefit, trend rate		5.00%
Defined benefit plan cost of health benefit, year that rate reaches ultimate rate		2021
Result of one percent increase in net periodic benefit cost		$ 13,000
Result of one percent decrease in net periodic benefit cost		13,000
Result of one percent increase in accumulated post-retirement benefit obligation		322,000
Result of one percent decrease in accumulated post-retirement benefit obligation		269,000
Payroll liability in accrued compensation and benefits		2,100,000	$ 2,000,000
Cash surrender value of the related life insurance policies		1,700,000	1,600,000
Aggregate intrinsic value of options exercised		200,000	$ 600,000		$ 800,000
Aggregate intrinsic value of options outstanding		2,800,000
Aggregate intrinsic value of options exercisable		$ 1,900,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair value of common stock, common stock price		85.00%
Shares issued under Employee Stock Purchase Plan		151,812	120,240	112,745
Shares available for equity grants		485,542
Employee Stock Purchase Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares for issuance under Employee Stock Purchase Plan		1,900,000
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for equity grants		1,931,575
Range of period in which vested stock expire		10 years
Employee Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum period in which vested stock become exercisable		4 years
Employee Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair value of common stock, common stock price		100.00%
Maximum period in which vested stock become exercisable		1 year
Restricted Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum period in which vested stock become exercisable		4 years
Restricted Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum period in which vested stock become exercisable		1 year
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum period in which vested stock become exercisable		3 years
Number of common share granted	128,916
Award measurement period		1 year
Performance Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock granted on achievement of performance goals		150.00%
Performance Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock granted on achievement of performance goals		0.00%
Unvested stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax unrecognized compensation cost of unvested stock options		$ 2,800,000
Weighted-average period of compensation cost		1 year 6 months
Unvested restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period of compensation cost		2 years 3 months 18 days
Pre-tax unrecognized compensation cost of unvested restricted stock units		$ 5,900,000

Employee Benefit Plans - Schedule of Post-Retirement Benefits Obligation to Funded Status and Liability (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Accumulated benefit obligation at beginning of year	$ 2,909	$ 3,909
Service cost	16	20
Interest cost	120	208
Actuarial gain	(617)	(1,137)
Benefits paid	(62)	(91)
Accumulated benefit obligation at end of year	2,366	2,909
Plan assets at end of year
Funded status	$ (2,366)	$ (2,909)

- Definition

The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Glossary Benefits
-URI http://asc.fasb.org/extlink&oid=6506267

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Glossary Benefits
-URI http://asc.fasb.org/extlink&oid=6506309

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(6)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Postretirement Benefits
-URI http://asc.fasb.org/extlink&oid=6521376

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(5)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References + Details

- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References + Details

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6525008

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Employee Benefit Plans - Schedule of Stock Option Activity under Share-Based Compensation Plans (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year, Shares	3,112	3,210	3,221
Granted, Shares	437	157	380
Exercised, Shares	(73)	(123)	(263)
Canceled, Shares	(363)	(132)	(128)
Outstanding, end of year, Shares	3,113	3,112	3,210
Options exercisable at year end, Shares	2,209	2,112	1,857
Outstanding, beginning of year, Wt. Avg.Ex.Price	$ 13.01	$ 12.89	$ 12.87
Granted, Wt. Avg.Ex.Price	10.50	13.33	13.77
Exercised, Wt. Avg.Ex.Price	8.26	9.03	10.92
Canceled, Wt. Avg.Ex.Price	14.29	14.24	19.06
Outstanding, end of year, Wt. Avg.Ex.Price	12.62	13.01	12.89
Options exercisable at year end, Wt. Avg.Ex.Price	$ 13.52	$ 14.44	$ 15.26

Employee Benefit Plans - Schedule of Stock Options Outstanding and Exercisable (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number Outstanding	3,113	3,112	3,210	3,221
Options Outstanding Approximate Wt. Avg. Remaining Life (Years)	5 years 2 months 12 days
Options Outstanding ,Wt. Avg. Ex. Price	$ 12.62	$ 13.01	$ 12.89	$ 12.87
Options Exercisable, Number Exercisable	2,209	2,112	1,857
Options Exercisable, Wt. Avg. Ex. Price	$ 13.52	$ 14.44	$ 15.26
Range of Exercise Price $ 7.32 - $10.83 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum	7.32
Range of Exercise Prices, Maximum	$ 10.83
Options Outstanding, Number Outstanding	1,317
Options Outstanding Approximate Wt. Avg. Remaining Life (Years)	7 years 2 months 12 days
Options Outstanding ,Wt. Avg. Ex. Price	$ 8.33
Options Exercisable, Number Exercisable	641
Options Exercisable, Wt. Avg. Ex. Price	$ 7.39
Range Of Exercise Prices $10.84 - $16.26 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum	10.84
Range of Exercise Prices, Maximum	$ 16.26
Options Outstanding, Number Outstanding	1,001
Options Outstanding Approximate Wt. Avg. Remaining Life (Years)	5 years
Options Outstanding ,Wt. Avg. Ex. Price	$ 14.49
Options Exercisable, Number Exercisable	773
Options Exercisable, Wt. Avg. Ex. Price	$ 14.64
Range Of Exercise Prices $16.27 - $24.41 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum	16.27
Range of Exercise Prices, Maximum	$ 24.41
Options Outstanding, Number Outstanding	790
Options Outstanding Approximate Wt. Avg. Remaining Life (Years)	2 years 3 months 18 days
Options Outstanding ,Wt. Avg. Ex. Price	$ 17.33
Options Exercisable, Number Exercisable	790
Options Exercisable, Wt. Avg. Ex. Price	$ 17.33
Range Of Exercise Prices $24.42 - $36.63 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum	24.42
Range of Exercise Prices, Maximum	$ 36.63
Options Outstanding, Number Outstanding	5
Options Outstanding Approximate Wt. Avg. Remaining Life (Years)	2 years 6 months
Options Outstanding ,Wt. Avg. Ex. Price	$ 25.70
Options Exercisable, Number Exercisable	5
Options Exercisable, Wt. Avg. Ex. Price	$ 25.70

Employee Benefit Plans - Schedule of Restricted Stock Unit Activity under Share-Based Compensation Plans (Detail) - Restricted Stock [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year, Units	299	373	155
Granted, Units	462	75	323
Vested	(108)	(139)	(101)
Canceled, Units	(38)	(10)	(4)
Outstanding, end of year, Units	615	299	373
Outstanding, beginning of year, Wt. Avg. Fair Value	$ 12.98	$ 13.35	$ 14.60
Granted, Wt. Avg. Fair Value	9.57	13.00	12.90
Vested, Wt. Avg. Fair Value	13.27	13.91	14.68
Canceled, Wt. Avg. Fair Value	13.92	13.41	15.40
Outstanding, end of year, Wt. Avg. Fair Value	$ 10.54	$ 12.98	$ 13.35

Employee Benefit Plans - Schedule of Weighted Average Assumptions to Value Share-Based Awards Granted (Detail) - $ / shares	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.40%	1.90%	1.80%
Expected volatility	43.60%	42.40%	48.20%
Risk-free interest rate	0.10%	0.10%	0.20%
Expected term of options	6 months	6 months	6 months
Weighted-average grant date fair value per share	$ 2.78	$ 3.77	$ 3.90
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.10%	2.00%	1.60%
Expected volatility	46.30%	45.80%	46.60%
Risk-free interest rate	1.20%	1.90%	1.60%
Expected term of options	6 years 3 months	6 years	5 years 10 months 24 days
Weighted-average grant date fair value per share	$ 3.87	$ 5.06	$ 5.39
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.30%	1.80%	1.70%
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.30%

Employee Benefit Plans - Schedule of Reported Share-Based Compensation in Consolidated Financial Statements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation	$ 4,621	$ 4,287	$ 3,543
Income tax benefit
Total share-based compensation, net of tax	4,621	4,287	3,543
Cost of sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation	417	420	297
Research and development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation	1,364	1,356	1,121
Selling, general and administrative expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation	$ 2,840	$ 2,511	$ 2,125

Income Taxes - Significant Components of Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Current:
U.S. Federal	$ (1,898)	$ (90)	$ 1,239
U.S. State	(388)	(250)	(71)
Foreign	831	4,075	6,397
Total current	(1,455)	3,735	7,565
Deferred:
U.S. Federal	1,890	(977)	(1,519)
U.S. State	186	(4)	(207)
Foreign	(1,495)	(695)	(245)
Total deferred	581	(1,676)	(1,971)
Income tax provision	$ (874)	$ 2,059	$ 5,594

Income Taxes - Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Income Before Income Taxes [Line Items]
U.S.	$ (10,189)	$ 8,154	$ 7,059
Foreign	(2,928)	9,624	23,179
Income (loss) before income taxes	$ (13,117)	$ 17,778	$ 30,238

Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Deferred tax assets:
Inventory, receivable and warranty reserves	$ 11,434	$ 12,604
Net operating loss carryforwards	2,299	1,069
Tax credit carryforwards	7,764	7,213
Accrued employee benefits	2,167	2,233
Deferred profit	502	688
Stock-based compensation	3,409	2,715
Acquisition basis differences	2,226	2,369
Depreciation and fixed asset related	318
Other	243	207
Gross deferred tax assets	30,362	29,098
Less valuation allowance	(24,948)	(22,352)
Total deferred tax assets	5,414	6,746
Deferred tax liabilities:
Depreciation and fixed asset related		211
Gain on facilities sale	2,792	2,788
Acquisition basis differences	9,340	9,591
Other	283	252
Total deferred tax liabilities	12,415	12,842
Net deferred tax liabilities	$ (7,001)	$ (6,096)

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 27, 2009	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Schedule Of Income Taxes [Line Items]
Increase in our valuation allowance on DTAs	$ 19.6
Cumulative GAAP pretax income		$ 5.0
Valuation allowance		24.9	$ 22.4
State income taxes reduced by research tax credits		0.6	0.6	$ 0.6
Net operating loss carryforwards, state		21.7
Net operating loss carryforwards, foreign		$ 3.7
Net operating loss carryforwards, expiration year		2032
Tax credit carryforwards, foreign		$ 3.0
Tax credit carryforwards, state		11.2
Accumulated undistributed earnings not provided of U.S. income taxes		16.0
Unrecognized tax benefits if recognized would reduce income tax expense and effective rate		2.5	3.1
Acrrued payment of interest and penalties		0.4	0.4
Interest expense recognized		$ 0.1	$ 0.2	$ 0.1
Minimum [Member]
Schedule Of Income Taxes [Line Items]
Tax credit carryforwards, expiration date		Dec. 31, 2014
Time period for assessment and collection of income taxes		4 years
Maximum [Member]
Schedule Of Income Taxes [Line Items]
Tax credit carryforwards, expiration date		Dec. 31, 2032
Time period for assessment and collection of income taxes		6 years

Income Taxes - Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Reconciliation Of Income Taxes [Line Items]
Tax provision (credit) at U.S. 35% statutory rate	$ (4,591)	$ 6,223	$ 10,583
State income taxes, net of federal tax benefit	(645)	(941)	95
Settlements, adjustments and releases from statute expirations	367	(791)	(712)
Change in effective tax rate for deferred balances	346		638
Federal tax credits		(707)	(688)
Stock-based compensation on which no tax benefit provided	177	202	55
Change in valuation allowance	2,614	(483)	(2,027)
Foreign income taxed at different rates	(227)	(726)	(1,740)
Non-deductible transaction costs	700
Other, net	385	(718)	(610)
Income tax provision	$ (874)	$ 2,059	$ 5,594

Income Taxes - Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes (Parenthetical) (Detail)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Reconciliation Of Income Taxes [Line Items]
U.S. Federal statutory tax rate	35.00%	35.00%	35.00%

Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Reconciliation Of Unrecognized Tax Benefits [Line Items]
Balance at beginning of year	$ 5,381	$ 5,069	$ 4,886
Gross additions for tax positions of current year	776	1,455	578
Gross additions (reductions) for tax positions of prior years	195	126	(23)
Reductions as a result of a lapse of the statute of limitations	(272)	(1,269)	(372)
Balance at end of year	$ 6,080	$ 5,381	$ 5,069

Segment and Related Information - Financial Information by Industry Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 24, 2011	Jun. 25, 2011	Mar. 26, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Net sales by segment:
Total consolidated net sales and net sales for reportable segments	$ 50,714	$ 57,748	$ 59,404	$ 53,296	$ 66,559	$ 71,813	$ 80,896	$ 89,700	$ 221,162	$ 308,968	$ 322,667
Segment profit (loss):
Profit (loss) for reportable segments									(6,299)	22,357	33,894
Other unallocated amounts:
Corporate expenses									(7,785)	(5,021)	(4,217)
Interest and other income									967	442	561
Income (loss) before income taxes									(13,117)	17,778	30,238
Depreciation and amortization by segment deducted in arriving at profit (loss):
Total Depreciation expense									5,346	5,422	4,929
Intangible amortization									4,057	4,645	6,059
Total depreciation and amortization for reportable segments									9,403	10,067	10,988
Capital expenditures by segment:
Total consolidated capital expenditures									3,267	1,413	4,579
Semiconductor equipment [Member]
Net sales by segment:
Total consolidated net sales and net sales for reportable segments									179,449	260,648	273,566
Segment profit (loss):
Profit (loss) for reportable segments									(5,331)	20,040	29,654
Depreciation and amortization by segment deducted in arriving at profit (loss):
Total Depreciation expense									4,506	4,313	3,596
Capital expenditures by segment:
Total consolidated capital expenditures									2,759	991	3,973
Microwave communications [Member]
Net sales by segment:
Total consolidated net sales and net sales for reportable segments									26,863	29,967	31,705
Segment profit (loss):
Profit (loss) for reportable segments									(847)	1,510	3,679
Depreciation and amortization by segment deducted in arriving at profit (loss):
Total Depreciation expense									652	893	1,096
Capital expenditures by segment:
Total consolidated capital expenditures									481	313	440
Video cameras [Member]
Net sales by segment:
Total consolidated net sales and net sales for reportable segments									14,850	18,353	17,396
Segment profit (loss):
Profit (loss) for reportable segments									(121)	807	561
Depreciation and amortization by segment deducted in arriving at profit (loss):
Total Depreciation expense									188	216	237
Capital expenditures by segment:
Total consolidated capital expenditures									$ 27	$ 109	$ 166

Segment and Related Information - Financial Information by Industry Segment (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 29, 2012 USD ($)
Ismeca [Member]
Segment Reporting Information [Line Items]
Acquisition related costs	$ 2.3

Segment and Related Information - Net Assets by Product Line (Detail) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Total assets by segment:
Corporate, principally cash and investments and deferred taxes	$ 21,641	$ 72,853	$ 71,893
Total consolidated assets	334,873	361,608	366,043
Total assets for reportable segments [Member]
Total assets by segment:
Total consolidated assets	313,232	288,755	294,150
Semiconductor equipment [Member]
Total assets by segment:
Total consolidated assets	281,173	255,189	255,246
Microwave communications [Member]
Total assets by segment:
Total consolidated assets	22,635	21,968	27,812
Video cameras [Member]
Total assets by segment:
Total consolidated assets	$ 9,424	$ 11,598	$ 11,092

Segment and Related Information - Summary of Semiconductor Equipment Net Sales (Detail)	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Intel [Member]
Segment Reporting Information [Line Items]
Net sales	39.00%	36.00%	26.00%
Texas Instruments [Member]
Segment Reporting Information [Line Items]
Net sales		11.00%	14.00%

Segment and Related Information - Summary of Semiconductor Equipment Net Sales (Parenthetical) (Detail)	12 Months Ended
	Dec. 29, 2012
Segment Reporting Information [Line Items]
Net sales percentage	10.00%

Segment and Related Information - Summary of Net Sales to Customers, Attributed to Countries (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 24, 2011	Jun. 25, 2011	Mar. 26, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Segment Reporting Information [Line Items]
Net sales	$ 50,714	$ 57,748	$ 59,404	$ 53,296	$ 66,559	$ 71,813	$ 80,896	$ 89,700	$ 221,162	$ 308,968	$ 322,667
United States [Member]
Segment Reporting Information [Line Items]
Net sales									57,193	77,563	64,992
Malaysia [Member]
Segment Reporting Information [Line Items]
Net sales									40,326	48,624	52,539
China [Member]
Segment Reporting Information [Line Items]
Net sales									31,973	37,824	50,454
Costa Rica [Member]
Segment Reporting Information [Line Items]
Net sales									22,934	14,152	6,778
Philippines [Member]
Segment Reporting Information [Line Items]
Net sales									22,507	40,368	51,659
Rest of the World [Member]
Segment Reporting Information [Line Items]
Net sales									$ 46,229	$ 90,437	$ 96,245

Segment and Related Information - Summary of Property Plant and Equipment in Geographical Area (Detail) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Property, plant and equipment:
Net property, plant and equipment	$ 35,464	$ 36,981
Goodwill and other intangible assets:
Goodwill and other intangible assets, net	77,733	79,888
United States [Member]
Property, plant and equipment:
Net property, plant and equipment	22,621	24,138
Goodwill and other intangible assets:
Goodwill and other intangible assets, net	17,985	17,241
Germany [Member]
Property, plant and equipment:
Net property, plant and equipment	8,802	8,625
Goodwill and other intangible assets:
Goodwill and other intangible assets, net	53,190	56,089
Asia (Singapore, Taiwan and Philippines) [Member]
Property, plant and equipment:
Net property, plant and equipment	4,041	4,218
Singapore [Member]
Goodwill and other intangible assets:
Goodwill and other intangible assets, net	$ 6,558	$ 6,558

Stockholder Rights Plan - Additional Information (Detail)	1 Months Ended
	Nov. 30, 2006 $ / Warrant $ / Right	Sep. 30, 1999 $ / Warrant	Nov. 30, 1996 $ / Warrant
Stockholder Rights Plan [Line Items]
Dividends payable, date of record			Dec. 03, 1996
Effect of stock split	Each one-half of a Right entitles the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $95.	As a result of the two-for-one stock split in September, 1999, each share of common stock was associated with one-half of a Right entitling the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $45	Each Right entitled the holder to buy one one-hundredth (1/100) of a share of Cohu’s Series A Preferred Stock for $90
Stockholder Rights Plan, expiration date	Nov. 09, 2016
Stockholder Rights Plan, redemption price per Right \| $ / Right	0.001
(1/100th) [Member]
Stockholder Rights Plan [Line Items]
Preferred Stock purchase price upon exercise of Rights	190		90
(1/200th) [Member]
Stockholder Rights Plan [Line Items]
Preferred Stock purchase price upon exercise of Rights	95	45

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Rental Expense And Deferred Rent [Line Items]
Rental expense	$ 1.1	$ 1.1	$ 1.3

Commitments and Contingencies - Future Minimum Lease Payments (Detail) - Non-cancelable operating leases [Member] $ in Thousands	Dec. 29, 2012 USD ($)
Schedule Of Future Minimum Rental Payments For Operating Leases [Line Items]
2013	$ 993
2014	596
2015	72
2016
2017
Thereafter
Total	$ 1,661

Guarantees - Changes in Accrued Warranty (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Product Warranty [Line Items]
Beginning balance	$ 6,801	$ 5,016	$ 3,747
Warranty accruals	4,214	10,987	6,071
Warranty payments	(6,323)	(9,202)	(4,802)
Ending balance	$ 4,692	$ 6,801	$ 5,016

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

Guarantees - Additional Information (Detail) $ in Millions	Dec. 29, 2012 USD ($)
Guarantees And Letters Of Credit [Line Items]
Maximum amount of future payments under letters of credit	$ 0.6

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Standard Microsystems Corporation [Member]
Related Party Transaction [Line Items]
Total sales	$ 0.2	$ 0.5	$ 0.4
Microsemi Corporation [Member]
Related Party Transaction [Line Items]
Total sales	$ 1.1	$ 1.7

Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Accumulated Other Comprehensive Income Loss [Line Items]
Foreign currency translation adjustments, Before Tax	$ 1,689	$ (1,076)	$ (7,270)
Adjustments related to postretirement benefits, Before Tax	362	1,267	(1,386)
Change in unrealized gain/loss on investments, Before Tax	(16)	(6)	(134)
Other Comprehensive Income (Loss), Before Tax	2,035	185	(8,790)
Foreign currency translation adjustments, Tax (Expense) or Benefit
Adjustments related to postretirement benefits, Tax (Expense) or Benefit	(240)		(120)
Change in unrealized gain/loss on investments, Tax (Expense) or Benefit			51
Other Comprehensive Income (Loss), Tax (Expense) or Benefit	(240)		(69)
Foreign currency translation adjustments, Net-of-Tax	1,689	(1,076)	(7,270)
Adjustments related to postretirement benefits, Net-of-Tax	122	1,267	(1,506)
Change in unrealized gain/loss on investments, Net-of-Tax	(16)	(6)	(83)
Other Comprehensive Income (Loss), Net-of-Tax	$ 1,795	$ 185	$ (8,859)

Quarterly Financial Data - Summary of Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 24, 2011	Jun. 25, 2011	Mar. 26, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Quarterly Financial Data [Line Items]
Net sales	$ 50,714	$ 57,748	$ 59,404	$ 53,296	$ 66,559	$ 71,813	$ 80,896	$ 89,700	$ 221,162	$ 308,968	$ 322,667
Gross profit	16,649	18,126	17,664	15,539	21,412	23,355	26,547	28,815	67,978	100,129
Net income (loss)	$ (5,161)	$ (1,749)	$ (2,109)	$ (3,224)	$ 719	$ 3,376	$ 5,050	$ 6,574	$ (12,243)	$ 15,719	$ 24,644
Net income (loss) per share
Basic	$ (0.21)	$ (0.07)	$ (0.09)	$ (0.13)	$ 0.03	$ 0.14	$ 0.21	$ 0.27	$ (0.50)	$ 0.65	$ 1.04
Diluted	$ (0.21)	$ (0.07)	$ (0.09)	$ (0.13)	$ 0.03	$ 0.14	$ 0.21	$ 0.27	$ (0.50)	$ 0.64	$ 1.02

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.23)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Schedule II Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 463	$ 556	$ 1,013
Additions Not Charged to Expense	1	(2)	(22)
Additions (Reductions) Charged (Credited) to Expense	(57)	(25)	(429)
Deductions/ Write-offs	99	66	6
Balance at End of Year	308	463	556
Reserve for excess and obsolete inventories [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	25,575	23,783	25,680
Additions Not Charged to Expense	611	88	167
Additions (Reductions) Charged (Credited) to Expense	8,884	5,796	1,743
Deductions/ Write-offs	7,008	4,092	3,807
Balance at End of Year	$ 28,062	$ 25,575	$ 23,783

Cash, Cash Equivalents and Short-Term Investments - Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	$ 110,229	$ 105,002
Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	101,054	25,359
Municipal securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	1,470	4,315
Government-sponsored enterprise securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	5,951	19,050
Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	1,754	22,753
U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		3,267
Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		27,208
Bank certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		3,050
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	101,054	28,626
Level 1 [Member] \| Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	101,054	25,359
Level 1 [Member] \| Municipal securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 1 [Member] \| Government-sponsored enterprise securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 1 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 1 [Member] \| U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		3,267
Level 1 [Member] \| Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 1 [Member] \| Bank certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	9,175	76,376
Level 2 [Member] \| Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 2 [Member] \| Municipal securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	1,470	4,315
Level 2 [Member] \| Government-sponsored enterprise securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	5,951	19,050
Level 2 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value	1,754	22,753
Level 2 [Member] \| U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 2 [Member] \| Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		27,208
Level 2 [Member] \| Bank certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value		3,050
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Municipal securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Government-sponsored enterprise securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value
Level 3 [Member] \| Bank certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total estimated fair value