Statement of Financial Position [Abstract] Equity Component [Domain] ASSETS ASSETS [Abstract] Current assets: Current assets: [Abstract] Cash and cash equivalents Trade accounts receivable, net of allowance for doubtful accounts of $147 and $147, respectively Inventories Deferred tax assets Prepaid expenses and other current assets Total current assets Property and equipment: Property and equipment: [Abstract] Machinery and equipment Leasehold improvements Gross property and equipment Less: accumulated depreciation Net property and equipment Deferred tax assets Goodwill Intangible assets, net Restricted certificates of deposit Other assets Total assets LIABILITIES AND STOCKHOLDERS' EQUITY LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract] Current liabilities: Current liabilities: [Abstract] Accounts payable Accrued wages and benefits Accrued rent Accrued professional fees Accrued sales commissions Other current liabilities Total current liabilities Commitments and Contingencies Stockholders' equity: Stockholders' equity: [Abstract] Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding Common stock, $0.01 par value; 20,000,000 shares authorized; 10,585,755 and 10,590,755 shares issued, respectively Addtional paid-in capital Retained earnings Accumulated other comprehensive earnings Treasury stock, at cost; 33,077 and 33,077 shares, respectively Total stockholders' equity Total liabilities and stockholders' equity Allowance for doubtful accounts, respectively (in Dollars) Preferred stock par value (in Dollars per share) Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock, par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Treasury stock, at cost, shares, respectively Income Statement [Abstract] Net revenues Cost of revenues Gross margin Operating expenses: Operating expenses: [Abstract] Selling expense Engineering and product development expense General and administrative expense Total operating expenses Operating income Reflects the sum of all expenses, other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Other income Earnings before income tax expense Income tax expense Net earnings Net earnings per common share - basic (in Dollars per share) Weighted average common shares outstanding - basic (in Shares) Net earnings per common share - diluted (in Dollars per share) Weighted average common shares and common share equivalents outstanding - diluted (in Shares) Statement of Comprehensive Income [Abstract] Net earnings Foreign currency translation adjustments Comprehensive earnings Statement of Stockholders' Equity [Abstract] Balance Balance Balance (in Shares) Balance (in Shares) Net earnings Other comprehensive earnings Amortization of deferred compensation related to restricted stock Forefeiture of non-vested shares of restricted stock (in Shares) Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES CASH FLOWS FROM OPERATING ACTIVITIES [Abstract] Net earnings Adjustments to reconcile net earnings to net cash provided by (used in) operating activities: Adjustments to reconcile net earnings to net cash provided by (used in) operating activities: [Abstract] Depreciation and amortization Provision for excess and obsolete inventory Foreign exchange (gain) loss Amortization of deferred compensation related to restricted stock The cash inflow from sale of machinery and equipment net of any gain on sale. Proceeds from sale of demonstration equipment, net of gain Deferred income tax expense Changes in assets and liabilities: Changes in assets and liabilities: [Abstract] Trade accounts receivable Inventories Prepaid expenses and other current assets Other assets Accounts payable Accrued wages and benefits Accrued rent Accrued professional fees Accrued sales commissions Other current liabilities Net cash provided by (used in) operating activities CASH FLOWS FROM INVESTING ACTIVITIES CASH FLOWS FROM INVESTING ACTIVITIES [Abstract] Purchase of property and equipment Net cash used in investing activitites CASH FLOWS FROM FINANCING ACTIVITIES CASH FLOWS FROM FINANCING ACTIVITIES [Abstract] Proceeds from stock options exercised Net cash provided by financing activities Effects of exchange rates on cash Net cash used in all activities Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash payments for: Cash payments for: [Abstract] Domestic and foreign income taxes SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES: SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES: [Abstract] Issuance of non-vested shares of restricted stock Forfeiture of non-vested shares of restricted stock Disclosure Text Block [Abstract] Nature of Operations [Text Block] Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Text Block] Table Text Block [Abstract] Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Compensation and Retirement Disclosure [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Basis of Presentation and Use of Estimates [Policy Text Block] Reclassification, Policy [Policy Text Block] Inventory, Policy [Policy Text Block] Goodwill Intangible and Long Lived Assets [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Subsequent Events, Policy [Policy Text Block] Revenue Recognition, Policy [Policy Text Block] Standard Product Warranty, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] The entire disclosure for the basis of presentation and the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Finite-Lived Intangible Assets, Major Class Name [Domain] Note 3 - Goodwill and Intangible Assets (Tables) [Table] Note 3 - Goodwill and Intangible Assets (Tables) [Line Items] Schedule of Intangible Assets [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Inventory, Current [Table Text Block] Tabular disclosure of letters of credit outstanding as of the reporting date. Schedule Of Outstanding Letters Of Credit [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Nonvested Share Activity [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Weighted Average Common Shares Weighted Average Common Shares [Abstract] Weighted average common shares outstanding -- basic Potentially dilutive securities: Potentially dilutive securities: [Abstract] Employee stock options and unvested shares of restricted stock Weighted average common shares and common share equivalents outstanding -- diluted Average number of potentially dilutive securities excluded from calculation Intangible Assets Intangible Assets [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Note 3 - Goodwill and Intangible Assets (Details) - Intangible Assets [Table] Note 3 - Goodwill and Intangible Assets (Details) - Intangible Assets [Line Items] Finite-lived intangible assets: Finite-lived intangible assets: [Abstract] Gross Carrying Amount Accumulated Amortization Net Carrying Amount Indefinite-lived intangible assets: Indefinite-lived intangible assets: [Abstract] Gross Carrying Amount Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Finite-lived intangible assets: [Abstract]0 Indefinite-lived intangible assets: Indefinite-lived intangible assets: [Abstract]0 Changes in the Amount of the Carrying Value of Intangible Assets Changes in the Amount of the Carrying Value of Intangible Assets [Abstract] Balance - January 1, 2014 Amortization Balance - March 31, 2014 Future Amortization Expense Future Amortization Expense [Abstract] 2014 (remainder) 2015 2016 2017 2018 Inventories Inventories [Abstract] Raw materials Work in process Inventory consigned to others Finished goods Outstanding Letters of Credit Outstanding Letters of Credit [Abstract] LeaseExpirationDate [Domain] LettersOfCredit [Domain] LetterOfCreditExpirationDate [Domain] OriginalLetterOfCreditIssueDate [Domain] Note 6 - Debt (Details) - Outstanding Letters of Credit [Table] Note 6 - Debt (Details) - Outstanding Letters of Credit [Line Items] Original L/C Issue Date L/C Expiration Date Lease Expiration Date Letters of Credit Amount Outstanding Allocation of Share-Based Compensation Expense Allocation of Share-Based Compensation Expense [Abstract] Income Statement Location [Domain] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Allocated Share-Based Compensation Expense Nonvested Shares Nonvested Shares [Abstract] Nonvested shares outstanding, January 1, 2014 Nonvested shares outstanding, January 1, 2014 Granted Granted Vested Vested Forfeited Forfeited Nonvested shares outstanding, March 31, 2014 Nonvested shares outstanding, March 31, 2014 Stock Option Activity Stock Option Activity [Abstract] Options outstanding - Number of shares Options outstanding - Number of shares Options outstanding - Weighted average exercise price Options outstanding - Weighted average exercise price Granted Granted Exercised Exercised Forfeited/Expired Forfeited/Expired Options exercisable Segment Information Segment Information [Abstract] Segments [Domain] Geographical [Domain] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Revenues Earnings (loss) before income tax expense (benefit): Earnings (loss) before income tax expense (benefit): [Abstract] Earnings (Loss) Before Income Tax Expense (Benefit) Net earnings (loss): Net earnings (loss): [Abstract] Net earnings (loss) Identifiable assets: Identifiable assets: [Abstract] Identifiable Assets Net revenues from unaffiliated customers: Net revenues from unaffiliated customers: [Abstract] Long-lived assets: Long-lived assets: [Abstract] Long-lived Assets Number of Reportable Segments Inventory Adjustments Goodwill, Period Increase (Decrease) Amortization of Intangible Assets Customer [Domain] Concentration Risk Type [Domain] Concentration Risk Benchmark [Domain] Note 4 - Major Customers (Details) [Table] Note 4 - Major Customers (Details) [Line Items] Concentration Risk, Percentage Equity Award [Domain] Plan Name [Domain] Note 7 - Stock-Based Compensation (Details) [Table] Note 7 - Stock-Based Compensation (Details) [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Defined Contribution Plan Employer Matching Contribution Vesting Period Defined Contribution Plan, Employer Discretionary Contribution Amount Vesting period for employer matching contributions to defined contribution plan. Customer [Axis] Retained Earnings [Member] Concentration Risk Type [Axis] UNITED STATES Segments [Axis] Scenario [Axis] Trademarks [Member] Geographical [Axis] Noncompete Agreements [Member] Award Type [Axis] Corporate Segment [Member] Indefinite-lived Intangible Assets [Axis] Scenario, Unspecified [Domain] Accumulated Other Comprehensive Income (Loss) [Member] Selling and Marketing Expense [Member] Additional Paid-in Capital [Member] Computer Software, Intangible Asset [Member] Patented Technology [Member] Subsequent Event Type [Axis] Equity Components [Axis] Income Statement Location [Axis] Common Stock [Member] Customer Relationships [Member] Customer Concentration Risk [Member] Finite-Lived Intangible Assets by Major Class [Axis] Plan Name [Axis] Trade Names [Member] Subsequent Event [Member] Concentration Risk Benchmark [Axis] General and Administrative Expense [Member] Sales Revenue, Net [Member] Treasury Stock [Member] Cost of Sales [Member] Restricted Stock [Member] Lease Expiration Date [Axis] Lease Expiration Date [Axis] Letter Of Credit Expiration Date [Axis] Letter of Credit Expiration Date [Axis] Letters Of Credit [Axis] Letters of Credit [Axis] Original Letter Of Credit Issue Date [Axis] Original Letter of Credit Issue Date [Axis] Carrying Value Changes [Member] Carrying Value Changes [Member] Customer Backlog [Member] Customer Backlog [Member] Electrical Products [Member] Electrical Products [Member] Engineering And Product Development Expense [Member] Engineering and Product Development Expense [Member] Foreign [Member] Foreign [Member] Hakuto Co Ltd [Member] Hakuto Co., Ltd. [Member] Lease Expiration Date 4302021 [Member] Lease Expiration Date: 4/30/2021 [Member] Lease Expiration Date 8232021 [Member] Lease Expiration Date: 8/23/2021 [Member] Letter Of Credit Expiration Date 11082014 [Member] Letter of Credit Expiration Date: 11/08/2014 [Member] Letter Of Credit Expiration Date 3312015 [Member] Letter of Credit Expiration Date: 3/31/2015 [Member] Mansfield [Member] Mansfield [Member] Mechanical Products [Member] Mechanical Products [Member] Mt Laurel [Member] Mt. Laurel [Member] No Customers [Member] No Customers [Member] Number of customer or name of the customer. Original LC Issue Date 10272010 [Member] Original L/C Issue Date: 10/27/2010 [Member] Original LC Issue Date 3292010 [Member] Original L/C Issue Date: 3/29/2010 [Member] Stock Plan 2014 [Member] Stock Plan 2014 [Member] Stock Plan 2014 [Member] Temptronic Facility [Member] Temptronic Facility [Member] Texas Instruments Incorporated [Member] Texas Instruments Incorporated [Member] Thermal Products [Member] Thermal Products [Member] Document and Entity Information [Abstract] DefinedContributionPlanEmployerMatchingContributionVestingPeriod BasisOfPresentationAndUseOfEstimatesPolicyTextBlock ScheduleOfIntangibleAssetsTableTextBlock GoodwillIntangibleAndLongLivedAssetsPolicyTextBlock ScheduleOfOutstandingLettersOfCreditTableTextBlock Increase (Decrease) in Other Current Liabilities Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Deferred Tax Assets, Net of Valuation Allowance, Current Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Reclassification, Policy [Policy Text Block] Increase (Decrease) in Reserve for Commissions, Expense and Taxes Entity Common Stock, Shares Outstanding Finite-Lived Intangible Assets, Net Comprehensive Income (Loss), Net of Tax, Attributable to Parent Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Liabilities, Current Operating Expenses Earnings Per Share, Policy [Policy Text Block] Payments to Acquire Property, Plant, and Equipment Finite-Lived Intangible Assets, Accumulated Amortization Segment Reporting Disclosure [Text Block] Cash and Cash Equivalents, Period Increase (Decrease) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Assets, Current Current Fiscal Year End Date Increase (Decrease) in Inventories Document Fiscal Period Focus Goodwill, Period Increase (Decrease) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Number of Reportable Segments Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Net Cash Provided by (Used in) Operating Activities, Continuing Operations Property, Plant and Equipment, Gross Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Gross Profit Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Operating Income (Loss) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Well-known Seasoned Issuer Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Entity Registrant Name Subsequent Events, Policy [Policy Text Block] Entity Voluntary Filers Goodwill and Intangible Assets Disclosure [Text Block] Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Entity Public Float Entity Filer Category Intangible Assets, Gross (Excluding Goodwill) Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of Nonvested Share Activity [Table Text Block] Defined Contribution Plan, Employer Discretionary Contribution Amount Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Increase (Decrease) in Deferred Income Taxes Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Accounts Payable Nature of Operations [Text Block] Increase (Decrease) in Other Operating Liabilities Entity Central Index Key Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Amendment Flag Amortization of Intangible Assets Revenues Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Increase (Decrease) in Other Accrued Liabilities Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Significant Accounting Policies [Text Block] Standard Product Warranty, Policy [Policy Text Block] Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Inventory Disclosure [Text Block] Foreign Currency Transaction Gain (Loss), before Tax Increase (Decrease) in Accounts Receivable Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Document Period End Date Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Revenue Recognition, Policy [Policy Text Block] Depreciation, Depletion and Amortization, Nonproduction Increase (Decrease) in Employee Related Liabilities Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Stockholders' Equity Attributable to Parent Schedule of Inventory, Current [Table Text Block] Amendment Description Concentration Risk, Percentage Pension and Other Postretirement Benefits Disclosure [Text Block] Document Type Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Treasury Stock, Value Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income Tax, Policy [Policy Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Debt Disclosure [Text Block] Liabilities and Equity Inventory Adjustments Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Entity Current Reporting Status Inventory, Policy [Policy Text Block] Increase (Decrease) in Other Operating Assets and Liabilities, Net Document Fiscal Year Focus Statement [Table] Statement [Line Items]