Accounts Payable Current Accounts payable - trade Accounts Receivable Net Current Accounts receivable, net of allowance for doubtful accounts of $400 in 2012 and $258 in 2011 Accrued Income Taxes Current Income taxes payable Accrued Liabilities Current Accrued liabilities Accrued Liabilities Disclosure Accrued Liabilities Disclosure [Text Block] Accrued Liabilities Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income Accumulated Other Comprehensive Income [Member] Accumulated other comprehensive income (loss) Additional Paid In Capital Additional paid-in capital Additional Paid In Capital [Member] Additional paid in capital Adjustments To Additional Paid In Capital Other Tax benefit from stock option exercise Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Shares Adjustments To Additional Paid In Capital Share - Based Compensation Requisite Service Period Recognition Shares Stock-based compensation expense (in shares) Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Stock-based compensation expense Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided in operating activities: Allowance For Doubtful Accounts Receivable Current Accounts receivable, allowance for doubtful accounts Amendment Flag Amendment Flag Asset Impairment Charges Impairment of investment in affiliate Impairment of investment in affiliate Assets Total assets Assets [Abstract] ASSETS: Assets Current Total current assets Assets Current [Abstract] Current assets: Business Acquisition Purchase Price Allocation [Abstract] Allocation of fair value to net assets acquired on purchase of FEI-Elcom Tech, Inc. Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Business Acquisition Purchase Price Allocation Capital Lease Obligation Accrual Capital lease obligations Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents Cash Business Acquisition Purchase Price Allocation Current Assets Inventory Inventory Business Acquisition Purchase Price Allocation Current Liabilities Accounts Payable Accounts payable Business Acquisition Purchase Price Allocation Current Liabilities Accrued Liabilities Accrued expenses Business Acquisition Purchase Price Allocation Deferred Tax Asset Business Acquisition Purchase Price Allocation Deferred Tax Asset Deferred tax assets Business Acquisition Purchase Price Allocation Goodwill And Intangible Assets Business Acquisition Purchase Price Allocation Goodwill And Intangible Assets Goodwill and other intangible assets Business Acquisition, Purchase Price Allocation, Other Assets Business Acquisition Purchase Price Allocation Other Assets Other assets Business Acquisition, Purchase Price Allocation, Other Current Assets Business Acquisition Purchase Price Allocation Other Current Assets Other current assets Business Acquisition Purchase Price Allocation Property And Equipment Business Acquisition Purchase Price Allocation Property And Equipment Fixed assets Business Acquisiton Purchase Price Allocation Accounts Receivable Business Acquisiton Purchase Price Allocation Accounts Receivable Accounts receivable Business Combination Disclosure [Text Block] Acquisition of Elcom Technologies, Inc. Capital Lease Obligations Noncurrent Capital lease obligation- noncurrent Cash Acquired From Acquisition Acquisition of FEI-Elcom, cash acquired Cash And Cash Equivalents At Carrying Value Cash and cash equivalents at end of year Cash and cash equivalents at beginning of year Cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Before Adjustment Cash And Cash Equivalents Period Increase Decrease Before Adjustment Net decrease in cash and cash equivalents before effect of exchange rate changes Cash Paid During Period For [Abstract] Cash Paid During Period For [Abstract] Cash paid during the year for: Cash Surrender Value Of Life Insurance And Cash Held In Trust Cash Surrender Value Of Life Insurance And Cash Held In Trust Cash surrender value of life insurance and cash held in trust Commitments And Contingencies Commitments and contingencies Common Stock [Member] Common Stock Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, authorized Common Stock Shares Issued Common stock, issued Common Stock Value Common stock - authorized 20,000,000 shares of $1.00 par value; issued - 9,163,940 shares Compensation And Employee Benefit Plans [Text Block] Employee Benefit Plans Comprehensive Income Net Of Tax Comprehensive income Comprehensive Income Net Of Tax [Abstract] Comprehensive Income: Cost Of Revenue Cost of revenues Disclosure related to costs in excess of billings and billings in excess of costs incurred. Costs In Excess Of Billings And Billings In Excess Of Costs Incurred [Text Block] Costs and Estimated Earnings in Excess of Billings Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year Costs and estimated earnings in excess of billings, net Current Fiscal Year End Date Current Fiscal Year End Date Deferred Compensation Liability Classified Noncurrent Deferred compensation Deferred Income Tax Expense Benefit Deferred income tax benefit Deferred Rent And Other Long Term Liabilities Noncurrent Deferred Rent And Other Long Term Liabilities Noncurrent Deferred rent and other liabilities Deferred Tax Assets Net Current Deferred income taxes Deferred Tax Assets Net Noncurrent Deferred income taxes Depreciation And Amortization Depreciation and amortization Document - Document and Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document - Document and Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share [Abstract] Net income per common share: Earnings Per Share Basic Basic Earnings Per Share Diluted Diluted Earnings Per Share [Text Block] Earnings Per Share Effect Of Exchange Rate On Cash And Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Entities [Table] Entities [Table] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity [Domain] Entity [Domain] Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Registrant Name Entity Registrant Name Entity Voluntary Filers Entity Voluntary Filers Entity Well Known Seasoned Issuer Entity Well-known Seasoned Issuer Equity Component [Domain] Equity Component [Domain] Excess Tax Benefit From Share Based Compensation Financing Activities Tax benefit from exercise of stock-based compensation Excess Tax Benefit From Share Based Compensation Operating Activities Tax benefit from exercise of stock-based compensation Exercise Of Stock Options And Stock Appreciation Rights, Shares Exercise Of Stock Options And Stock Appreciation Rights Shares Exercise of stock options and stock appreciation rights (in shares) Exercise Of Stock Options And Stock Appreciation Rights, Value Exercise Of Stock Options And Stock Appreciation Rights Value Exercise of stock options and stock appreciation rights The net gain or loss on sale of investments in securities and other. Gain Loss On Sale Of Investmentsin Securities And Other (Gain) Loss on marketable securities and other assets, net Gain On Investment In Affiliated Company Gain On Investment In Affiliated Company Gain on investment in affiliate Gain on investment in affiliate Goodwill And Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets Sum of the carrying amounts of all goodwill and intangible assets of the balance sheet date, net of accumulated amortization and impairment charges. Goodwill And Intangible Assets Net Goodwill and other intangible assets Gross Profit Gross margin Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income before benefit for income taxes Income Loss From Equity Method Investments Equity loss Equity loss Income Statement [Abstract] Income Statement [Abstract] Income Tax Disclosure [Text Block] Income Taxes Income Taxes Paid Income taxes Income Tax Expense Benefit Benefit for income taxes Increase Decrease In Accounts Payable Trade Accounts payable - trade Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Accrued Liabilities Accrued liabilities Increase Decrease In Income Taxes Income taxes refundable/payable Increase Decrease In Inventories Inventories Increase Decrease In Operating Capital [Abstract] Changes in operating assets and liabilities: Increase Decrease In Other Operating Assets Other assets Increase Decrease In Other Operating Liabilities Other liabilities Increase Decrease In Prepaid Deferred Expense And Other Assets Prepaid expenses and other Interest Expense Interest expense Interest Paid Interest Inventory Disclosure [Text Block] Inventories Inventory Net Inventories, net Investment Holdings [Text Block] Investment in Morion, Inc. Investment Income Interest Investment income Investments In Affiliates Subsidiaries Associates And Joint Ventures Investment in and loans receivable from affiliates Legal Entity [Axis] Legal Entity [Axis] Liabilities Total liabilities 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: Marketable Securities Current Marketable securities Marketable Securities [Text Block] Marketable Securities Net Cash Provided By Used In Financing Activities Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided By Used In Investing Activities Net cash used in investing activities Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided By Used In Operating Activities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities: Net Income Loss Net Income Net income Net income Noncash Deferred Lease Expense Noncash Deferred Lease Expense Deferred lease obligation Nonoperating Income Expense [Abstract] Other income (expense): Operating Income Loss Operating profit Other Assets Noncurrent Other assets Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease Foreign currency translation adjustment Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Change in unrealized gains and losses on marketable securities Other Nonoperating Income Expense Other expense, net Payments To Acquire Businesses Net Of Cash Acquired Acquisition of FEI-Elcom, net of $763 cash acquired Payments To Acquire Marketable Securities Purchase of marketable securities Payments To Acquire Property Plant And Equipment Capital expenditures Pension And Other Postretirement Benefit Expense Employee benefit plans expense Preferred Stock Par Or Stated Value Per Share Preferred stock, par value Preferred Stock Shares Authorized Preferred stock, authorized Preferred Stock Shares Issued Preferred stock, shares issued Preferred Stock Value Preferred stock - authorized 600,000 shares of $1.00 par value; no shares issued Prepaid Expense And Other Assets Current Prepaid expenses and other Prepaid Taxes Prepaid income taxes Proceeds From Lines Of Credit Proceeds from credit line borrowing Proceeds From Sale And Maturity Of Marketable Securities Proceeds from sale or redemption of marketable securities Proceeds From Sale Of Property Plant And Equipment Proceeds from sale of fixed assets Proceeds From Stock Options, Stock Appreciation Rights And Restricted Stock Exercised Proceeds From Stock Options Stock Appreciation Rights And Restricted Stock Exercised Proceeds from exercise of stock options and stock appreciation rights Product Warranty Disclosure [Text Block] Product Warranties Property Plant And Equipment Disclosure [Text Block] Property, Plant and Equipment Property Plant And Equipment Net Property, plant and equipment, at cost, net of accumulated depreciation and amortization Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, and inventory reserves for the purpose of reducing inventory, to an amount that approximates their net realizable value. Provision For Doubtful Accounts And Provision For Inventory Reserves Provision for losses on accounts receivable, inventories and warranty reserve Repayments Of Short Term Debt Payment of short-term credit and lease obligations Research And Development Expense Research and development expenses Retained Earnings Accumulated Deficit Retained earnings Retained Earnings [Member] Retained earnings Revenues Revenues Segment Reporting Disclosure [Text Block] Segment Information Selling General And Administrative Expense Selling and administrative expenses Share Based Compensation Stock-based compensation expense Shares Issued Ending Balance (in shares) Beginning Balance (in shares) Short Term Borrowings Short-term credit obligations Short Term Debt [Text Block] Short-Term Debt Obligations Significant Accounting Policies [Text Block] Summary of Accounting Policies Statement Equity Components [Axis] Statement, Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Stockholders Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Stockholders Equity Ending Balance Beginning Balance Total stockholders' equity Stockholders Equity [Abstract] Stockholders' equity: Stockholders Equity Before Treasury Stock Stockholders' Equity before Treasury Stock, Total Stock Issued During Period, Shares, 401(k) Contribution Stock Issued During Period Shares 401 K Contribution Contribution of stock to 401(k) plan (in shares) Stock Issued During Period, Value, 401(k) Contribution Stock Issued During Period Value 401 K Contribution Contribution of stock to 401(k) plan Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information: Text Block [Abstract] Text Block [Abstract] Trading Symbol Trading Symbol Treasury Stock [Member] Treasury stock Treasury Stock Shares Common stock reacquired and held in treasury, shares Treasury Stock Value Common stock reacquired and held in treasury - at cost (800,787 shares in 2012 and 865,734 shares in 2011) Weighted Average Number Basic And Diluted, Shares Outstanding [Abstract] Weighted Average Number Basic And Diluted Shares Outstanding [Abstract] Average shares outstanding: Weighted Average Number Of Diluted Shares Outstanding Diluted Weighted Average Number Of Shares Outstanding Basic Basic