Amendment Flag Current Fiscal Year End Date Document Period End Date Entities [Table] Entity Information [Line Items] Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Asia [Member] BASIS OF PRESENTATION AND ACCOUNTING POLICIES [Abstract] Accounts payable Accounts receivable, net of allowance for doubtful accounts of $1,865 in 2016 and $1,747 in 2015 Accounts Receivable, Net, Current ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Joint venture liability Accounts Payable, Related Parties, Current ACCRUED EXPENSES [Abstract] Sales commissions Accrued expenses Accrued expenses Accrued Liabilities, Current Accrued expenses [Abstract] Accrued Liabilities and Other Liabilities [Abstract] Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Foreign Currency Translation Adjustment [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized Holding Gains on Available-for-Sale Securities [Member] Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Accumulated other comprehensive loss [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustment, net of taxes of ($336) at March 31, 2016 and ($336) at December 31, 2015 Accumulated Other Comprehensive Income (Loss) [Table] Unrealized holding gains on available-for-sale securities, net of taxes of $292 at March 31, 2016 and $265 at December 31, 2015 Unfunded SERP liability, net of taxes of ($1,295) at March 31, 2016 and ($1,327) at December 31, 2015 Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive loss Accumulated other comprehensive loss Balance at beginning of period Balance at end of period Accumulated Other Comprehensive Income (Loss), Net of Tax Additional paid-in capital Adjustments to reconcile net (loss) earnings to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Accounts receivable, allowance for doubtful accounts Amortization of deferred financing costs Impairment charges Asset Impairment Charges Construction in Progress [Member] Asset under Construction [Member] ASSETS Assets [Abstract] Financial assets accounted at fair value Total assets Assets Total current assets Assets, Current Current Assets: Current Assets Available-for-sale securities carrying amount Available-for-sale Securities, Amortized Cost Basis BASIS OF PRESENTATION AND ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Buildings and Improvements [Member] Acquisition of issued and outstanding capital stock Business Acquisition, Acquiree [Domain] Acquisition date Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition [Line Items] Cash and cash equivalents - beginning of period Cash and cash equivalents - end of period Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Net (decrease) increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Class of Stock [Domain] Commitments and contingencies COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES [Abstract] Common Stock Common share (in dollars per share) Common stock, authorized (in shares) Common stock, par value (in dollars per share) Common Class A [Member] Class A [Member] Class A Common Stock [Member] Common stock, outstanding (in shares) Common Class B [Member] Class B [Member] Class B Common Stock [Member] RETIREMENT FUND AND PROFIT SHARING PLAN [Abstract] Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent ACCUMULATED OTHER COMPREHENSIVE LOSS Consolidation Items [Domain] Consolidation Items [Axis] Cost of sales Credit Facility [Domain] Credit Facility [Axis] Customer Relationships [Member] DEBT [Abstract] DEBT Debt Disclosure [Text Block] Deferred tax assets (liabilities) [Abstract] Deferred income taxes Deferred finance cost net Deferred Finance Costs, Net Current deferred income tax assets Long-term deferred income tax assets Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Current deferred income tax liabilities Deferred Tax Liabilities, Net, Current Long-term deferred income tax liabilities Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Defined Contribution Plan Name [Axis] Defined Contribution Plan [Table] Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Name [Domain] Net amortization Defined Benefit Plan, Other Costs Total amounts recognized in accumulated other comprehensive loss Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Defined Benefit Plan Disclosure [Line Items] Amounts recognized in accumulated other comprehensive loss, pretax [Abstract] Net loss Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax Interest cost Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Components of SERP expense [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Compensation expense Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Service cost Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Prior service cost Depreciation and amortization Depreciation expense Less Dividends declared: Dividends, Common Stock, Cash Europe [Member] Net (loss) earnings per share [Abstract] Earnings Per Share, Basic and Diluted [Abstract] Weighted-average shares outstanding [Abstract] Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Common share - basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted (LOSS) EARNINGS PER SHARE Earnings Per Share [Text Block] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] (LOSS) EARNINGS PER SHARE [Abstract] Net earnings per common share: Effect of exchange rate changes on cash and cash equivalents Salaries, bonuses and related benefits Equity Component [Domain] Error Corrections and Prior Period Adjustments Restatement [Line Items] Fair Value Inputs, Assets, Quantitative Information [Line Items] Net operating revenue multiples used Invested capital control premium Asset Class [Axis] Asset Class [Domain] Discount rate of fair value inputs Operating EBITDA multiples used Revenue compound annual growth rate (CAGR) Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Nonrecurring [Member] Fair Value Inputs, Assets, Quantitative Information [Table] FAIR VALUE MEASUREMENTS [Abstract] Measurement Frequency [Axis] Fair Value Inputs [Abstract] Schedule of underlying assumptions utilized in fair value FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Fair Value, Measurement Frequency [Domain] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets, Major Class Name [Domain] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets by Major Class [Axis] Components of intangible assets other than goodwill [Abstract] Other intangible assets amortization period Finite-Lived Intangible Asset, Useful Life Foreign Jurisdictions [Member] Foreign Tax Authority [Member] Net unrealized gains on foreign currency revaluation Foreign Currency Transaction Gain, before Tax Net unrealized losses (gains) on foreign currency revaluation Impairment of goodwill and other intangible assets Impairment of goodwill and other intangible assets Goodwill Goodwill Goodwill, net beginning of period Goodwill, net end of period Accumulated impairment charges, beginning of period Accumulated impairment charges, end of period Goodwill, Impaired, Accumulated Impairment Loss GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill [Line Items] Foreign currency translation Goodwill, Translation Adjustments Goodwill, gross end of period Goodwill, gross beginning of period Goodwill, Gross Goodwill [Roll Forward] Impairment charge Impairment charges Goodwill, Impairment Loss GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract] Goodwill [Member] Gross profit Gross Profit Intersegment Elimination [Member] Intangible assets, impairment charges Income Approach - Discounted Cash Flows [Member] CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract] INCOME TAXES [Abstract] Income Tax Authority [Axis] (Loss) earnings before (benefit) provision for income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest (Benefit) provision for income taxes Income Tax Authority [Domain] INCOME TAXES Income Tax Disclosure [Text Block] Income taxes, net of refunds received Accounts receivable Increase (Decrease) in Accounts Receivable Account payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Other operating assets/liabilities, net Increase (Decrease) in Other Operating Liabilities Changes in operating assets and liabilities: Inventories Increase (Decrease) in Inventories Gross Carrying Amount Indefinite-lived Intangible Assets, 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credit Line of Credit Facility, Lender [Domain] Interest rate on borrowings outstanding Line of Credit Facility [Line Items] Litigation Case [Domain] Litigation Case [Axis] Fair value of long-term debt Carrying amount of long-term debt Current portion of long-term debt Long-term debt Long-term Debt, Excluding Current Maturities Estimated liability Loss Contingency, Estimate of Possible Loss Loss Contingencies [Table] Loss Contingencies [Line Items] Machinery and Equipment [Member] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Axis] Market Approach - Multiples of Guideline Companies [Member] Maximum [Member] Minimum [Member] Minority interest ownership percentage Noncontrolling Interest, Ownership Percentage by Parent Schedule of warranty accrual account for the period from the acquisition date [Roll Forward] North America [Member] Cash flows from financing activities: Cash flows from operating activities: Numerator [Abstract] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net (loss) earnings Net (loss) earnings available to common stockholders Net (loss) earnings available to common stockholders Cash flows from investing activities: Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Non-compete Agreements [Member] Noncompete Agreements [Member] Number of reportable operating segments (Loss) income from operations Income (loss) from operations Operating Income (Loss) Net current period other comprehensive income Other Comprehensive Income (Loss), Net of Tax Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Currency translation adjustment, tax Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Currency translation adjustment, net of taxes of $0 in 2016 and ($160) in 2015 Other assets Other Assets, Noncurrent Other, net Other Noncash Income (Expense) Other current assets Other Assets, Current Change in unfunded SERP liability, tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax Change in unfunded SERP liability, net of taxes of $72 in 2016 and $28 in 2015 Unrealized holding gain on marketable securities arising during the period, tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Gross unrealized gains associated with the investment held in the rabbi trust Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Unrealized holding gains on marketable securities arising during the period, net of taxes of $27 in 2016 and $33 and 2015 Other current liabilities Other liabilities Other Liabilities, Noncurrent Interest income and other, net Other comprehensive income (loss): Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract] Other Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Dividends paid to common stockholders Payments of Dividends Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Payment of deferred financing costs Payments of Debt Issuance Costs Minimum pension obligation and unfunded pension liability RETIREMENT FUND AND PROFIT SHARING PLAN Pension and Other Postretirement Benefits Disclosure [Text Block] Preferred stock, no par value, 1,000,000 shares authorized; none issued Preferred stock, issued (in shares) Preferred stock, authorized (in shares) Preferred stock, par value (in dollars per share) Reduction in notes payable Borrowings under revolving credit line Proceeds from disposal/sale of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Warranty accrual Property, plant and equipment Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment, Type [Axis] Property, plant and equipment [Abstract] Property, Plant and Equipment, Net [Abstract] PROPERTY, PLANT AND EQUIPMENT [Abstract] Property, Plant and Equipment, Type [Domain] Property, plant and equipment, net Property, plant and equipment, net Property, Plant and Equipment, Net Property, plant and equipment, gross Property, Plant and Equipment [Line Items] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Reportable Operating Segments [Member] Range [Domain] Range [Axis] Amount reclassified from accumulated other comprehensive loss Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Summary of key financial data [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Related Party Transactions [Line Items] Related Party Transaction [Line Items] RELATED PARTY TRANSACTIONS [Abstract] Repayments of revolving credit line Repayments of Long-term Lines of Credit Repayments of long-term debt Repayments of Long-term Debt Reclass [Member] Restructuring charges Retained earnings Net sales to external customers Revenues Revolving Credit Facility [Member] Net sales As Reported [Member] Scenario, Previously Reported [Member] Scenario, Unspecified [Domain] Schedule of warranty accrual account for the period from the acquisition date Schedule of Product Warranty Liability [Table Text Block] Components of intangible assets other than goodwill Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of deferred tax assets and liabilities Accrued expenses Schedule of Accrued Liabilities [Table Text Block] Components of accumulated other comprehensive loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of earnings and weighted average shares outstanding used in the computation of basic and diluted earnings per share Schedule of Finite-Lived Intangible Assets [Table] Schedule of Business Acquisitions, by Acquisition [Table] Components of inventories Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule of Defined Benefit Plans Disclosures [Table] Changes in carrying value of goodwill classified by reportable operating segment Schedule of Goodwill [Table Text Block] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Schedule of Goodwill [Table] Property, Plant and Equipment [Table] Related Party Transactions [Table] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Segment Reporting Information, by Segment [Table] Key financial data SEGMENTS [Abstract] Segment [Domain] Segment Reporting Information [Line Items] SEGMENTS Segment Reporting Disclosure [Text Block] Geographical [Domain] Selling, general and administrative expense Stock-based compensation Less repair costs incurred Standard Product Warranty Accrual, Period Increase (Decrease) Less cash settlements Standard Product Warranty Accrual, Payments Beginning balance as of beginning of period Ending balance as of end of period Standard Product Warranty Accrual Currency translation Statement [Line Items] CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) [Abstract] CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS [Abstract] Equity Components [Axis] Equity Components [Axis] Statement [Table] Scenario [Axis] Business Segments [Axis] CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) [Abstract] Class of Stock [Axis] Geographical [Axis] SERP [Member] Stockholders' Equity: Total stockholders' equity Stockholders' Equity Attributable to Parent SERP [Member] Unfunded SERP Liability [Member] Supplemental Employee Retirement Plan [Member] Supplementary information: Trademarks [Member] Common stock, treasury shares (in shares) Deferred financing costs Undistributed (loss) earnings Undistributed Earnings, Diluted Undistributed (loss) earnings Undistributed Earnings, Basic Reduction relating to settlement with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Interest and penalties uncertain tax positions recognized Liability for uncertain tax positions Accrued interest and penalties uncertain tax positions Valuation Technique [Domain] Valuation Technique [Axis] Weighted-average number of shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Common share - basic and diluted (in shares) Common share - basic and diluted (in shares) Value of investment in a trust (for example, a 'rabbi trust') set up specifically to accumulate stock for the sole purpose of distribution to participating employees. Investments held in Rabbi Trust [Member] The percentage weighting used for the valuation method. Fair Value Inputs, Weighting of Valuation Method, Percent Weighting of valuation method The amount of the transfers of assets or liabilities measured on a recurring basis between different levels of the fair value hierarchy. Transfers in out between levels Represents percentage of cost of debt capital, used an input to measure fair value. Fair Value Inputs Cost of Debt Capital Cost of debt capital Represents percentage of weighted average cost of capital, used an input to measure fair value. Fair Value Inputs Weighted average cost of capital Weighted average cost of capital Represents percentage of cost of equity capital, used an input to measure fair value. Fair Value Inputs Cost of Equity Capital Cost of equity capital Estimated fair royalty rate, used as an input to measure fair value. Fair Value Inputs, Estimated Fair Royalty Rate, Percent Estimated fair royalty rate Earnings before interest, taxes, depreciation, and amortization (EBITDA) as a percentage of net sales, used as an input to measure fair value. Fair Value Inputs, Earnings Before Interest Taxes Depreciation And Amortization, Percent 2016 EBITDA (b) Refers to connectivity solutions product which is one of the product groups of the company. Connectivity solution [Member] Connectivity Solution [Member] Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] Tax effect of accumulated appreciation or loss in value of foreign currency translation adjustment at the end of an accounting period. Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax Effect Foreign currency translation adjustment, tax Tax portion in relation to net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Effect Unfunded SERP liability, tax Tax effect of accumulated appreciation or loss in value of total available-for-sale securities at the end of an accounting period. Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Tax Effect Unrealized holding gains on available-for-sale securities, tax Accumulated Other Comprehensive Income Loss Tax Effect [Abstract] Accumulated other comprehensive loss, tax [Abstract] Document and Entity Information [Abstract] Number of industry in which entity operates with its reportable operating segments. Number of industry in which entity operates Represents the companies acquired in a business combination. Acquired Companies [Member] 2014 Acquisitions [Member] Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments and disclosure of the net gain (loss) and net prior service cost or credit recognized in accumulated other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans. Schedule of Net Benefit Costs, Amount Recognized in Balance Sheet and Accumulated Other Comprehensive Income [Table Text Block] Components of SERP expense Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in accumulated other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Gross amounts recognized in accumulated other comprehensive loss, net of tax The annual accrual of the amount expected to be recognized for uncertain tax positions as of the balance sheet date. Annual accrual for liability for uncertain tax positions Acquisition of net assets or equity interests of an entity wherein the acquiring entity obtains control over the acquired entity. Emerson Network Power Connectivity Solutions [Member] Connectivity Solutions [Member] Expected amount of decrease in unrecognized resulting from the lapse of statute of limitations and settlement. Expected Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations and Settlement Relates to reduction relating to interest and penalties uncertain tax positions. Reduction Of Unrecognized Tax Benefits Income Tax Penalties And Interest Expense Reduction relating to interest and penalties uncertain tax positions Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Income Taxes [Line Items] Schedule for income taxes. Disclosure includes but not limited to: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. Income Taxes [Table] Senior Credit and Security Agreement entered by the entity. New Secured Credit Agreement [Member] Credit and Security Agreement "CSA" [Member] Refers to monetary loan that is repaid in regular payments over a set period of time. Term Loan [Member] Inventory purchased from the joint venture during the period. Inventory purchases from joint venture Inventory purchase payment from joint venture Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract] Denominator [Abstract] Undistributed earnings allocation basic and diluted [Abstract] Undistributed (loss) earnings allocation - basic and diluted [Abstract] Net earnings allocation basic and diluted [Abstract] Net (loss) earnings allocation - basic and diluted [Abstract] Earning Per Share Two Class Method [Abstract] Earnings and weighted average shares outstanding [Abstract] Dividends Paid Per Share [Abstract] Dividends paid per common share: Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to subcontracting labor. Used to reflect current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued subcontracting labor Subcontracting labor Represents liability for a standard product warranty adjustments related to pre-existing warranties (including changes in estimates). Standard Product Warranty Accrual Adjustments Related to Pre-existing Warranties Including changes in Estimates Adjustments related to pre-existing warranties (including changes in estimates) Represents the aggregate increase in the charges and costs accrued of the standard product warranty. Standard Product Warranty Accrual Charges and Costs Accrued Charges and costs accrued Tabular disclosure of changes in components of accumulated other comprehensive income (loss). Schedule of changes in accumulated other comprehensive loss by component [Table Text Block] Changes in accumulated other comprehensive loss by component ACCUMULATED OTHER COMPREHENSIVE LOSS [Abstract] Element represent class of finite-lived intangible assets, i.e. patents, licenses and technology. Patents, licenses and technology [Member] Patents, Licenses and Technology [Member] Acquisition of net assets or equity interests of an entity wherein the acquiring entity obtains control over the acquired entity. Arezzo Revenue Agency [Member] Number of subsidiary in Dusseldorf, Germany. Number of subsidiary entity against lawsuit Number of subsidiary entity against lawsuit Cash Paid During Period For [Abstract] Cash paid during the period for: Number of shares of the company's common stock owned by the plan. Shares Held in Plan Shares owned by plan (in shares) The Company's non-defined retirement fund covering substantially all of their Hong Kong-based full-time employees. Non Defined Retirement Fund [Member] The defined contribution plan that is intended to meet the applicable requirements for tax-qualification under section 401(a) and (k) of the Internal Revenue Code of 1986. Bel Fuse Inc Employees Savings Plan [Member] Acquisition of net assets or equity interests of an entity wherein the acquiring entity obtains control over the acquired entity. Power Solutions [Member] Acquisition of net assets or equity interests of an entity wherein the acquiring entity obtains control over the acquired entity. Emerson [Member]