Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts And Other Receivables Net Current Accounts receivable, net Accounts Payable Current Accounts payable Accrued Income Taxes Current Income taxes payable Accrued Income Taxes Noncurrent Noncurrent income tax liabilities Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Less accumulated depreciation and amortization Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income Additional Paid In Capital Common Stock Paid-in capital Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Allocated Share Based Compensation Expense Net Of Tax Total share-based compensation, net of tax Allowance For Doubtful Accounts Receivable Current Net of allowance for doubtful accounts Amendment Flag Amendment Flag Amortization Of Intangible Assets Amortization expense related to purchased intangible assets Amortized Cost and Fair Value Debt Securities [Abstract] Amortized Cost And Fair Value Debt Securities [Abstract] Amortized Cost and Fair Value Debt Securities [Abstract] Assets Total consolidated assets Assets [Abstract] ASSETS Assets Current Total current assets Assets Current [Abstract] Current assets: Available For Sale Securities Total estimated fair value Available For Sale Securities Amortized Cost Amortized Cost Available For Sale Securities Continuous Unrealized Loss Position [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] Available For Sale Securities Current Short-term investments Estimated Fair Value Available For Sale Securities Debt Maturities Within One Year Amortized Cost Due in one year or less, Amortized Cost Securities amortized cost, Due in one year or less Available For Sale Securities Debt Maturities Within One Year Fair Value Due in one year or less, Estimated Fair Value Securities fair value, Due in one year or less Amount of accumulated pre-tax unrealized gain before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments. Available For Sale Securities Gross Unrealized Gain Accumulated In Investments Gross Unrealized Gains Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments. Available For Sale Securities Gross Unrealized Loss Accumulated In Investments Gross Unrealized Losses Available For Sale Securities [Text Block] Short-Term Investments by Security Type Award Type [Axis] Award Type [Axis] Basis Of Presentation And Significant Accounting Policies [Text Block] Basis of Presentation Buildings And Improvements Gross Buildings and building improvements Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business Acquisition [Axis] Cash And Cash Equivalents At Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Net decrease in cash and cash equivalents Cash [Member] Cash [Member] Commitments And Contingencies Commitments and contingencies Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments Contingencies And Guarantees [Text Block] Guarantees Common Stock Dividends Per Share Declared Cash dividends declared per share Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common Stock Shares Outstanding Common stock, shares outstanding Common Stock Value Common stock, $1 par value; 60,000 shares authorized, 25,248 shares issued and outstanding in 2014 and 25,080 shares in 2013 Comprehensive Income Net Of Tax Comprehensive loss Cost Of Goods And Services Sold Cost of sales Cost Of Sales [Member] Cost of Sales [Member] Costs And Expenses Total cost and expenses Costs And Expenses [Abstract] Cost and expenses: Current Fiscal Year End Date Current Fiscal Year End Date Debt Security [Axis] Debt Security [Axis] Deferred Income Tax Expense Benefit Deferred income taxes The carrying value of deferred revenue, net of expenses, as of the balance sheet date that is expected to be recognized as such within one year or the normal operating cycle, if longer. Deferred Profit Deferred profit Deferred Revenue Deferred revenue Deferred Tax Assets Net Current Deferred income taxes Deferred Tax Liabilities Noncurrent Deferred income taxes Depreciation Depletion And Amortization Depreciation and amortization Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Employee Stock Benefit Plans Dividends Payable Current And Noncurrent Dividends declared but not yet paid Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Duma Technology [Member] Duma Technology [Member] Duma Technology [Member] Earnings Per Share [Abstract] Loss per share: Earnings Per Share Basic Basic Earnings Per Share Diluted Diluted Earnings Per Share Policy [Text Block] Income (Loss) Per Share Effective Income Tax Rate Continuing Operations Effective tax rate benefit Effect Of Exchange Rate On Cash And Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Employee Related Liabilities Current Accrued compensation and benefits Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Tax Benefit From Compensation Expense Income tax benefit Employee Stock Option [Member] Employee Stock Options [Member] Employee stock purchase plan. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Equity based performance stock units. Equity Based Performance Stock Units [Member] Equity-Based Performance Stock Units [Member] Executive Officer [Member] Senior Executives [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Assets Measured On Recurring Basis [Text Block] Assets Measured at Fair Value on Recurring Basis Fair Value By Fair Value Hierarchy Level [Axis] Fair Value, Hierarchy [Axis] Fair Value Inputs Level 1 [Member] Level 1 [Member] Fair Value Inputs Level 2 [Member] Level 2 [Member] Fair Value Inputs Level 3 [Member] Level 3 [Member] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Financial Instruments And Fair Value Measurements [Text Block] Financial Instruments And Fair Value Measurements [Text Block] Financial Instruments Measured at Fair Value Finite Lived Intangible Assets Accumulated Amortization Accumulated Amortization Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Gross Gross Carrying Amount Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Goodwill Goodwill Goodwill Goodwill Goodwill Acquired During Period Additions net of adjustments Goodwill And Intangible Asset Impairment Goodwill impairment Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill And Intangible Assets Disclosure [Text Block] Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets Goodwill And Intangible Assets Intangible Assets Policy Goodwill, Other Intangible Assets and Long-lived Assets Goodwill Translation Adjustments Impact of currency exchange Guarantee Obligations Maximum Exposure Maximum potential amount of future payments under standby letters of credit Guarantees [Abstract] Guarantees [Abstract] Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Loss for reportable segments Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Loss before taxes Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Taxes Income Taxes Paid Net Cash paid (refunded) for income taxes Income Tax Expense Benefit Income tax benefit Increase Decrease In Accounts Payable Accounts payable Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Accrued Income Taxes Payable Income taxes payable, including excess stock option exercise benefit Increase Decrease In Accrued Liabilities Accrued compensation, warranty and other liabilities Increase Decrease In Deferred Revenue Deferred profit Increase Decrease In Inventories Inventories Increase Decrease In Operating Capital [Abstract] Changes in current assets and liabilities, excluding effects from acquisitions: Increase Decrease In Other Accrued Liabilities Other accrued liabilities Increase Decrease In Other Operating Assets Other current assets Indefinite Lived Intangible Assets By Major Class [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite Lived Intangible Assets Excluding Goodwill Amounts excluded related to trade names Indefinite Lived Intangible Assets Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible Assets [Line Items] Intangible Assets [Line Items] Intangible Assets [Line Items] Intangible Assets Net Excluding Goodwill Intangible assets, net Intangible Assets [Table] Intangible Assets [Table] Intangible Assets [Table] Inventory capitalized as property, plant and equipment Inventory Capitalized As Property Plant And Equipment Inventory capitalized as property, plant and equipment Inventory Finished Goods Net Of Reserves Finished goods Inventory Net Total inventories Inventory Net [Abstract] Inventories: Inventory Raw Materials And Purchased Parts Net Of Reserves Raw materials and purchased parts Inventory Work In Process Net Of Reserves Work in process Investment Income Net Interest and other, net Investment [Line Items] Investment [Line Items] Investments Classified By Contractual Maturity Date Table [Text Block] Effective Maturities of Short-Term Investments Investments Debt And Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Investment [Table] Investment [Table] Ismeca Semiconductor Holding Sa [Member] Ismeca Semiconductor Holding Sa [Member] Ismeca [Member] Ismeca Technology [Member] Ismeca Technology [Member] Ismeca Technology [Member] Land And Land Improvements Land and land improvements Liabilities And Stockholders Equity Total liabilities and stockholders' equity Liabilities And Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities Current Total current liabilities Liabilities Current [Abstract] Current liabilities: Loss Contingency Disclosures Contingencies Machinery And Equipment Gross Machinery and equipment Major Types Of Debt And Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Major Types Of Debt Securities [Domain] Major Types of Debt Securities [Domain] Maximum [Member] Maximum [Member] Microwave communications. Microwave Communications [Member] Microwave Communications [Member] Minimum [Member] Minimum [Member] Money Market Funds [Member] Money Market Funds [Member] Municipal Securities Member Municipal Securities [Member] Municipal Securities [Member] Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided By Used In Financing Activities Continuing Operations Net cash used in financing activities Net Cash Provided By Used In Investing Activities Continuing Operations Net cash used in investing activities Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Cash flows from investing activities, excluding effects from acquisitions: Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities Continuing Operations Net cash used in operating activities Net Income Loss Net loss Net loss New Accounting Pronouncements Policy Policy [Text Block] Recent Accounting Pronouncements Number of customer accounted for more than 10 percentage of Net sales. Number Of Customer Accounted For More Than Ten Percentage Of Net Sales Customers individually accounting for more than 10% of consolidated net sales Operating Income Loss Loss from operations Other Accrued Liabilities Current Other accrued liabilities Other Assets Noncurrent Other assets Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Foreign currency translation adjustments Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Other comprehensive income (loss), net of tax Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax Adjustments related to postretirement benefits Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Change in unrealized gain/loss on investments Other General And Administrative Expense Corporate expenses Other unallocated amount. Other Unallocated Amount [Abstract] Other unallocated amounts: Payments For Proceeds From Other Investing Activities Other assets Payments For Repurchase Of Common Stock Repurchase of common stock Payments Of Dividends Common Stock Cash dividends paid Payments To Acquire Businesses Net Of Cash Acquired Payment for purchase of Ismeca, net of cash received Payments To Acquire Property Plant And Equipment Purchases of property, plant and equipment Pension And Other Postretirement Plans Policy Retiree Medical Benefits Percentage of consolidated net sales attributable to significant customer. Percentage Of Consolidated Net Sales Attributable To Significant Customer Percentage of consolidated net sales Percentage of the Fair Value to Determine the price of common stock. Percentage Of Fair Value To Determine Price Of Common Stock Percentage of fair value of common stock, common stock price Percentage Of Shareholder Return Award Target Percentage Of Shareholder Return Award Target Shareholders return adjustment range Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Postemployment Benefits Liability Noncurrent Accrued retirement benefits Preferred Stock Par Or Stated Value Per Share Preferred stock, par value Preferred Stock Shares Authorized Preferred stock, shares authorized Preferred Stock Shares Issued Preferred stock, shares issued Preferred Stock Value Preferred stock, $1 par value; 1,000 shares authorized, none issued Prepaid Expense And Other Assets Current Other current assets Proceeds From Sale And Maturity Of Available For Sale Securities Sales and maturities of short-term investments Product Warranties Disclosures [Abstract] Product Warranties Disclosures [Abstract] Product Warranty Accrual Additions From Business Acquisition Warranty liability assumed from Ismeca acquisition