Equity [Abstract] Performance-Based Common Stock Warrants Warrants Disclosure [Text Block] Warrants Disclosure [Text Block] Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents by Geographic Region Schedule of Cash and Cash Equivalents [Table Text Block] Cash and Cash Equivalents Cash and Cash Equivalents Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Payables and Accruals [Abstract] Other Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Changes to gross unrecognized tax benefits: Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance at beginning of period Unrecognized Tax Benefits Additions as a result of tax provisions taken during the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Foreign currency translation Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation Foreign currency translation Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation Lapse in statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Other Unrecognized Tax Benefits, Increase (Decrease), Other Unrecognized Tax Benefits, Increase (Decrease), Other Balance at end of period Schedule of Cash and Cash Equivalents [Table] Schedule of Cash and Cash Equivalents [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES People's Republic of China (PRC) CHINA Asia (excluding the PRC) Asia, Excluding The People's Republic of China [Member] Asia, Excluding The People's Republic of China Europe Europe [Member] South America South America [Member] Cash and Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Share-based Payment Arrangement [Abstract] Stock-Based Compensation Share-based Payment Arrangement [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill Goodwill [Roll Forward] Balance Goodwill Foreign exchange effects Goodwill, Foreign Currency Translation Gain (Loss) Balance Commitments and Contingencies Disclosure [Abstract] Changes in the liability for product warranty claim costs Movement in Standard Product Warranty Accrual [Roll Forward] Balance at beginning of period Standard and Extended Product Warranty Accrual Accruals for warranties issued during the period Standard and Extended Product Warranty Accrual, Increase for Warranties Issued Settlements (in cash or in kind) during the period Standard and Extended Product Warranty Accrual, Decrease for Payments Balance at end of period Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Inventory Disclosure [Abstract] Concentration Risk [Table] Concentration Risk [Table] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Texas Instruments Texas Instrument [Member] Texas Instrument Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Supplier Concentration Risk Supplier Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Inventory Purchases Cost of Goods and Service Benchmark [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Purchases from significant supplier Inventory Purchases Inventory Purchases Concentration risk percentage Concentration Risk, Percentage Contingencies [Table] Contingencies [Table] Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] UEBV Lawsuit Patent Lawsuit Against UEBV and Telenet [Member] Patent Lawsuit Against UEBV and Telenet [Member] Roku Lawsuit Patent Lawsuit Against Roku [Member] Patent Lawsuit Against Roku [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Design Patents Design Patents [Member] Design Patents [Member] Utility Patent Utility Patent [Member] Utility Patent [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation Pending Litigation [Member] Contingencies [Line Items] Contingencies [Line Items] [Line Items] for Contingencies [Table] Number of subsidiaries named in lawsuit Loss Contingency, Number of Subsidiaries Named in Lawsuit Loss Contingency, Number of Subsidiaries Named in Lawsuit Number of customers named in lawsuit Loss Contingency, Number of Customers Named in Lawsuit Loss Contingency, Number of Customers Named in Lawsuit Number of products named in lawsuit Loss Contingency, Patents Allegedly Infringed, Number of Products Loss Contingency, Patents Allegedly Infringed, Number of Products Number of patents allegedly infringed upon Loss Contingency, Patents Allegedly Infringed, Number Derivative Instruments and Hedging Activities Disclosure [Abstract] Total Net Fair Value of Derivatives Schedule of Derivative Assets at Fair Value [Table Text Block] Foreign Currency Exchange Contracts Schedule of Derivative Instruments [Table Text Block] Class of Warrant or Right [Table] Class of Warrant or Right [Table] Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Risk free interest rate Measurement Input, Risk Free Interest Rate [Member] Expected price volatility Measurement Input, Price Volatility [Member] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Performance-based warrants Common Stock Purchase Warrant [Member] Common Stock Purchase Warrant [Member] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Fair value (in dollars per share) Class of Warrant or Right, Fair Value Class of Warrant or Right, Fair Value Price of Universal Electronics Inc. common stock (in dollars per share) Share Price Measurement input Warrants and Rights Outstanding, Measurement Input Expected life in years Warrants and Rights Outstanding, Term Current tax expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current Current Income Tax Expense (Benefit) Deferred tax (benefit) expense: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred Deferred Income Tax Expense (Benefit) Total provision for income taxes Income Tax Expense (Benefit) Accounting Policies [Abstract] Principles of Consolidation Consolidation, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Reportable Segment Segment Reporting, Policy [Policy Text Block] Estimates and Assumptions Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Advertising Advertising Cost [Policy Text Block] Stock-Based Compensation Share-based Payment Arrangement [Policy Text Block] Performance-Based Common Stock Warrants Performance-based Common Stock Warrants, Policy [Policy Text Block] Performance-based Common Stock Warrants, Policy [Policy Text Block] Foreign Currency Translation and Foreign Currency Transactions Foreign Currency Transactions and Translations Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Allowance for Doubtful Accounts Accounts Receivable [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Leases Lessee, Leases [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Long-Lived and Intangible Assets Impairment Intangible Assets, Finite-Lived, Policy [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Derivatives Derivatives, Policy [Policy Text Block] Fair-Value Measurements Fair Value Measurement, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Earnings Per Share [Abstract] Earnings (Loss) Per Share Earnings Per Share [Text Block] Revenue from Contract with Customer [Abstract] Statement [Table] Statement [Table] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Goods and services transferred at a point in time Transferred at Point in Time [Member] Goods and services transferred over time Transferred over Time [Member] Statement [Line Items] Statement [Line Items] Net sales Revenue from Contract with Customer, Excluding Assessed Tax Net sales Gross profit Gross Profit Operating income (loss) Operating Income (Loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Earnings (loss) per share: Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted average fair value of grants (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected life in years Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Debt Disclosure [Abstract] Line of Credit Debt Disclosure [Text Block] Estimated Useful Lives of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment, Net and Construction in Progress Long-Lived Tangible Assets by Geographic Area Long-lived Assets by Geographic Areas [Table Text Block] Summarized Quarterly Financial Data Quarterly Financial Information [Table Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Machinery and equipment Machinery and Equipment [Member] Tooling and equipment Tools, Dies and Molds [Member] Leasehold and building improvements Leasehold Improvements [Member] Software Software and Software Development Costs [Member] Other Property, Plant and Equipment, Other Types [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Construction in progress Construction in Progress, Gross Shares repurchased (in shares) Treasury Stock, Shares, Acquired Cost of shares repurchased Treasury Stock, Value, Acquired, Cost Method Raw materials Inventory, Raw Materials, Gross Components Other Inventory, Gross Work in process Inventory, Work in Process, Gross Finished goods Inventory, Finished Goods, Gross Reserve for excess and obsolete inventory Inventory Valuation Reserves Inventories, net Inventory, Net Business Combinations [Abstract] Business Combinations Business Combination Disclosure [Text Block] Buildings Building [Member] Computer equipment Computer Equipment [Member] Furniture and fixtures Furniture and Fixtures [Member] Leasehold and building improvements Leasehold and Building Improvements [Member] Leasehold and Building Improvements [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Estimated useful life Property, Plant and Equipment, Useful Life Restructuring and Related Activities [Abstract] Severance costs Severance Costs Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Issued Common Stock [Member] Common Stock in Treasury Treasury Stock [Member] Paid-in Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Retained Earnings Retained Earnings [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance (in shares) Shares, Outstanding Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Impact to retained earnings from adoption of new accounting pronouncement Cumulative Effect of New Accounting Principle in Period of Adoption Balance after adoption of new accounting pronouncement Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Shares issued for employee benefit plan and compensation (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Shares issued for employee benefit plan and compensation Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Purchase of treasury shares (in shares) Purchase of treasury shares Stock options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock options exercised Stock Issued During Period, Value, Stock Options Exercised Shares Issued to directors (in shares) Shares Issued to Directors Shares Shares issued to Directors, shares Shares issued to directors Shares Issued To Directors, Value Shares Issued To Directors, Value Employee and director stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Performance-based common stock warrants Adjustments to Additional Paid in Capital, Warrant Issued Balance (in shares) Balance Document and Entity Information [Abstract] Document and entity information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Entity Common Stock, Share Outstanding Entity Common Stock, Shares Outstanding Accounting Policies [Table] Accounting Policies [Table] Accounting Policies [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] ASU 2014-09 Accounting Standards Update 2014-09 [Member] ASU 2016-02 Accounting Standards Update 2016-02 [Member] ASU 2016-02, Assets Reclassified Into Operating Lease, Right-Of-Use Asset Accounting Standards Update 2016-02, Assets Reclassified Into Operating Lease, Right-Of-Use Asset [Member] Accounting Standards Update 2016-02, Assets Reclassified Into Operating Lease, Right-Of-Use Asset [Member] ASU 2016-02, Liabilities Reclassified Into Operating Lease, Right-Of-Use Asset Accounting Standards Update 2016-02, Liabilities Reclassified Into Operating Lease, Right-Of-Use Asset [Member] Accounting Standards Update 2016-02, Liabilities Reclassified Into Operating Lease, Right-Of-Use Asset [Member] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Shipping and Handling Shipping and Handling [Member] Dividend Rate Measurement Input, Expected Dividend Rate [Member] Accounting Policies [Line Items] Accounting Policies [Line Items] [Line Items] for Accounting Policies [Table] Accruals for discounts and rebates Contract With Customer, Liability, Discounts And Rebates Accrued Contract With Customer, Liability, Discounts And Rebates Accrued Cumulative effect of the initial adoption of new accounting pronouncements Advertising costs Advertising Expense Selling, general and administrative expenses Selling, General and Administrative Expense Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Renewal term of operating leases Lessee, Operating Lease, Renewal Term Number of options to extend leases Lessee, Operating Lease, Number Of Options To Extend Lessee, Operating Lease, Number Of Options To Extend Estimated useful life of intangible assets Finite-Lived Intangible Asset, Useful Life Maturity of foreign currency exchange contracts Maximum Remaining Maturity of Foreign Currency Derivatives Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Operating lease obligations Operating Lease, Liability, Current Operating lease obligations Operating Lease, Liability, Noncurrent Property, Plant, and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Repurchased Shares of Common Stock Class of Treasury Stock [Table Text Block] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding at beginning of the year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Forfeited/canceled/expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Outstanding at end of the year (in shares) Vested and expected to vest at the end of the year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Exercisable at the end of the year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding at beginning of the year (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeited/canceled/expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Outstanding at end of the year (in dollars per share) Vested and expected to vest at the end of the year (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Exercisable at the end of the year (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term and Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Outstanding at end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Vested and expected to vest at the end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable at the end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Outstanding at end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested and expected to vest at the end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Exercisable at the end of the year Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Line of Credit Facility [Table] Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line of Credit Line of Credit [Member] Letter of Credit Letter of Credit [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Second Amended Credit Agreement Second Amended Credit Agreement [Member] Second Amended Credit Agreement [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] US Bank US Bank [Member] US Bank [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Enson Enson [Member] Enson Member. Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Base Rate Base Rate [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Letter of credit outstanding amount Letters of Credit Outstanding, Amount Ownership interest used to secure obligations Line of Credit Facility, Covenants, Subsidiary Ownership Percentage Securing Facility Line of Credit Facility, Covenants, Subsidiary Ownership Percentage Securing Facility Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Commitment fees Line of Credit Facility, Commitment Fee Amount Amount outstanding under line of credit Line of Credit, Current Interest expense on borrowings Interest Expense, Short-term Borrowings Receivables [Abstract] Pattern of Revenue Recognition Disaggregation of Revenue [Table Text Block] Revenue from External Customers by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Net Sales to Significant Customers Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Accounts Receivable, Net and Changes in the Allowance for Doubtful Accounts Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Trade Receivables Associated with Significant Customers Schedule of Accounts Receivable by Major Customers by Reporting Segments [Table Text Block] Schedule of Accounts Receivable by Major Customers by Reporting Segments [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock options Share-based Payment Arrangement, Option [Member] Restricted stock awards Restricted Stock [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Securities excluded from computation of earnings per common share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Shares (in 000’s) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested at beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-vested at end of period (in shares) Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-vested at beginning of the year (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Non-vested at end of the year (in dollars per share) Components of Other Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Research & Experimentation Research Tax Credit Carryforward [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Foreign Foreign Tax Authority [Member] Income Taxes [Line Items] Income Taxes [Line Items] [Line Items] for Income Taxes [Table] Income tax credit carryforwards Tax Credit Carryforward, Amount Net operating losses Operating Loss Carryforwards Valuation allowance Deferred Tax Assets, Valuation Allowance Increase in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Unrecognized tax benefits including interest and penalties Unrecognized Tax Benefits, Including Income Tax Interest and Penalties Accrued Unrecognized Tax Benefits, Including Income Tax Interest and Penalties Accrued Interest and penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Decrease in unrecognized tax benefits is reasonably possible in next 12 months Decrease in Unrecognized Tax Benefits is Reasonably Possible Transition tax liability Tax Cuts And Jobs Act, Transition Tax For Accumulated Foreign Earnings, Liability Tax Cuts And Jobs Act, Transition Tax For Accumulated Foreign Earnings, Liability Remaining payment period for transition tax liability Tax Cuts And Jobs Act, Transition Tax For Accumulated Foreign Earnings, Remaining Payment Period Tax Cuts And Jobs Act, Transition Tax For Accumulated Foreign Earnings, Remaining Payment Period Federal income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Provisional amount recorded upon remeasurement of deferred tax assets and liabilities Tax Cuts And Jobs Act, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit) Tax Cuts And Jobs Act, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit) Adjustment to provisional amount recorded upon remeasurement of deferred tax assets and liabilities Tax Cuts And Jobs Act, Measurement Period Adjustment, Change In Tax Rate, Income Tax Expense (Benefit) Tax Cuts And Jobs Act, Measurement Period Adjustment, Change In Tax Rate, Income Tax Expense (Benefit) GILTI deferred amounts Tax Cuts And Jobs Act Of 2017, Global Intangible Low-Taxed Income (GILTI), Deferred Income Tax Expense Tax Cuts And Jobs Act Of 2017, Global Intangible Low-Taxed Income (GILTI), Deferred Income Tax Expense Deferred tax liability related to state tax liabilities on future distributions Deferred Tax Liability, State Taxes, Dividend Reinvestment Deferred Tax Liability, State Taxes, Dividend Reinvestment Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2003 Stock Incentive Plan Stock Incentive Plan 2003 [Member] Stock Incentive Plan 2003 [Member] 2006 Stock Incentive Plan Stock Incentive Plan 2006 [Member] Stock Incentive Plan 2006 [Member] 2010 Stock Incentive Plan Stock Incentive Plan 2010 [Member] Stock Incentive Plan 2010 [Member] 2014 Stock Incentive Plan Stock Incentive Plan 2014 [Member] Stock Incentive Plan 2014 [Member] 2018 Equity and Incentive Compensation Plan Stock Incentive Plan 2018 [Member] Stock Incentive Plan 2018 [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Initial shares available for grant under the plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Remaining shares available for grant under the plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Outstanding shares granted under the plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options and Equity Instruments Other Than Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options and Equity Instruments Other Than Options, Outstanding, Number Leases [Abstract] Lease Balances within the Consolidated Balance Sheet Assets And Liabilities Lessee [Table Text Block] Assets And Liabilities Lessee Operating Lease Expense, Operating Lease Cash Flows and Supplemental Cash Flow Information Lease, Cost [Table Text Block] Lease Terms and Discount Rates Lessee Lease Description [Table Text Block] Lessee Lease Description [Table Text Block] Reconciliation of the Undiscounted Cash Flows for Each of the First Five Years and Thereafter to Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Retirement Benefits [Abstract] Percent of employer matching contribution Defined Contribution Plan, Employer Matching Contribution, Percent of Match Maximum percent of annual employer matched contribution per employee Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Company contributions expense Defined Contribution Plan, Cost Income Statement [Abstract] Net sales Cost of sales Cost of Goods and Services Sold Gross profit Research and development expenses Research and Development Expense Factory transition restructuring charges Restructuring Charges Operating income (loss) Interest income (expense), net Interest Income (Expense), Nonoperating, Net Gain on sale of Guangzhou factory Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Other income (expense), net Other Nonoperating Income (Expense) Income before provision for income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Provision for income taxes Net income (loss) Shares used in computing earnings (loss) per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Statement of Financial Position [Abstract] Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Shares authorized (in shares) Preferred Stock, Shares Authorized Shares issued (in shares) Preferred Stock, Shares Issued Shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, $0.01 par value, 50,000,000 shares authorized; 24,118,088 and 23,932,703 shares issued on December 31, 2019 and 2018, respectively Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Par value (in dollars per share) Common Stock, Par or Stated Value Per Share Shares authorized (in shares) Common Stock, Shares Authorized Shares issued (in shares) Common Stock, Shares, Issued Treasury stock, at cost, 10,174,199 and 10,116,459 shares on December 31, 2019 and 2018, respectively Treasury Stock, Shares [Abstract] Treasury stock (in shares) Treasury Stock, Shares Other Income and Expenses [Abstract] Net gain (loss) on foreign currency exchange contracts Gain (Loss) on Derivative Instruments, Net, Pretax Net gain (loss) on foreign currency exchange transactions Foreign Currency Transaction Gain (Loss), before Tax Other income (expense) Other Income (Expense) Other Income (Expense) Other income (expense), net Calculation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Securities Excluded from the Computation of Diluted Earnings (Loss) Per Common Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Domestic operations Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign operations Income (Loss) from Continuing Operations before Income Taxes, Foreign Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Certain Executive Employees Certain Executive Employees [Member] Certain Executive Employees [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Stock Options Non-Vested Restricted Stock Award Stock Appreciation Rights and Performance Stock Units Stock Appreciation Rights and Performance Stock Units [Member] Stock Appreciation Rights and Performance Stock Units [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Vesting on February 13, 2020 Share-based Payment Arrangement, Tranche One [Member] Vesting Quarterly Thereafter Share-based Compensation Award, Quarterly Vesting Thereafter [Member] Share-based Compensation Award, Quarterly Vesting Thereafter [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Modification expense Share-based Payment Arrangement, Plan Modification, Incremental Cost Proceeds from stock options exercised Proceeds from Stock Options Exercised Tax benefit from stock options exercised Deferred Tax Expense from Stock Options Exercised Unrecognized pre-tax stock-based compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized pre-tax stock-based compensation expense, period for recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Options granted (in shares) Award vesting rights percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Grant date fair value of stock options Share Based Compensation Arrangement by Share Based Payment Award Options Grants in Period Grant Date Fair Value Share based compensation arrangement by share based payment award options grants in period grant date fair value. Restricted stock granted (in shares) Restricted stock vested (in shares) Grant date fair value of restricted stock Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Grant Date Fair Value Share based compensation arrangement by share based payment award equity instruments other than options grant date fair value. Term of plans / awards Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Awards granted to date (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Awards, Cumulative Grants to Date Share-based Compensation Arrangement by Share-based Payment Award, Awards, Cumulative Grants to Date Derivative [Table] Derivative [Table] Currency [Axis] Currency [Axis] Currency [Domain] All Currencies [Domain] Euro Euro Member Countries, Euro Chinese Yuan China, Yuan Renminbi Brazilian Real Brazil, Brazil Real Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not designated as hedging instrument Not Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] USD/Brazilian Real Foreign Exchange Forward, USD/Brazilian Real Renminbi, Contract 1 [Member] Foreign Exchange Forward, USD/Brazilian Real Renminbi, Contract 1 [Member] USD/Brazilian Real Foreign Exchange Forward, USD/Brazilian Real Renminbi, Contract 2 [Member] Foreign Exchange Forward, USD/Brazilian Real Renminbi, Contract 2 [Member] USD/Chinese Yuan Renminbi Foreign Exchange Forward, USD/Chinese Yuan Renminbi, Contract 1 [Member] Foreign Exchange Forward, USD/Chinese Yuan Renminbi, Contract 1 [Member] USD/Chinese Yuan Foreign Exchange Forward, USD/Chinese Yuan Renminbi, Contract 2 [Member] Foreign Exchange Forward, USD/Chinese Yuan Renminbi, Contract 2 [Member] Derivative [Line Items] Derivative [Line Items] Notional Value Derivative, Notional Amount Forward rate Derivative, Forward Exchange Rate Unrealized gain (loss) recorded at balance sheet date Derivative, Gain (Loss) on Derivative, Net Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Foreign Currency Exchange Contracts Foreign Exchange Forward [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Measured on a Recurring Basis Fair Value, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Total Balance Estimate of Fair Value Measurement [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Foreign currency exchange contracts Derivative, Fair Value, Net Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Share Repurchase Program - Authorized October 30, 2018 Share Repurchase Plan - Authorized October 30, 2018 [Member] Share Repurchase Plan - Authorized October 30, 2018 [Member] Share Repurchase Program - Authorized March 10, 2020 Share Repurchase Program - Authorized March 10, 2020 [Member] Share Repurchase Program - Authorized March 10, 2020 [Member] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Amount of common stock authorized for purchase under repurchase plan Stock Repurchase Program, Authorized Amount Share value available for repurchase Stock Repurchase Program, Remaining Authorized Repurchase Amount Stock Repurchase Program, Number of Shares Authorized to be Repurchased Stock Repurchase Program, Number of Shares Authorized to be Repurchased Other Income (Expense), Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Statement of Comprehensive Income [Abstract] Other comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Change in foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Residential Control Systems Residential Control Systems, Inc [Member] Residential Control Systems, Inc [Member] Discount Rate Measurement Input, Discount Rate [Member] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Income Valuation Approach Valuation, Income Approach [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Purchase price Business Combination, Consideration Transferred Cash paid Payments to Acquire Businesses, Gross Contingent consideration Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Acquisition costs Business Combination, Acquisition Related Costs Net sales Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Net losses Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Additional earnout payments Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Measurement input Business Combination, Contingent Consideration, Liability, Measurement Input Long-term contingent consideration Business Combination, Contingent Consideration, Liability, Noncurrent Pro forma net sales Business Acquisition, Pro Forma Revenue Pro forma net income (loss) Business Acquisition, Pro Forma Net Income (Loss) Basic earnings (loss) per share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Diluted earnings (loss) per share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Increase (decrease) in amortization expense, net Business Acquisition, Pro Forma Information, Increase (Decrease) in Amortization Expense Business Acquisition, Pro Forma Information, Increase (Decrease) in Amortization Expense Pre-Tax Income (Loss) by Jurisdiction Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Net Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of Tax Provision at Statutory U.S. Rate to Provision for Income Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Changes to Gross Unrecognized Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Treasury Stock Treasury Stock [Text Block] Schedule of Reserve for Excess and Obsolete Inventory Inventory Reserve [Roll Forward] Inventory Reserve [Roll Forward] Balance at beginning of period Additions charged to costs and expenses Inventory Valuation Reserve, Period Charge Additions to costs and expenses. Sell through Inventory Valuation Reserve, Adjustments, Sales Inventory Valuation Reserve, Adjustments, Sales (Write-offs)/Foreign exchange effects Inventory Valuation Reserve, Write-Offs And Effect Of Exchange Rate Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions. Balance at end of period Accrued Compensation Components of Accrued Compensation Employee-related Liabilities, Current [Abstract] Accrued social insurance Accrued Social Insurance, Current Accrued social insurance current. Accrued salary/wages Accrued Salaries, Current Accrued vacation/holiday Accrued Vacation, Current Accrued bonus Accrued Bonuses, Current Accrued commission Accrued Employee Sales Commission, Current Accrued Employee Sales Commission, Current Other accrued compensation Other Employee-related Liabilities, Current Total accrued compensation Employee-related Liabilities, Current Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of sales Cost of Sales [Member] Research and development expenses Research and Development Expense [Member] Selling, general and administrative expenses Selling, General and Administrative Expenses [Member] Grantee Status [Axis] Grantee Status [Axis] Grantee Status [Domain] Grantee Status [Domain] Employees Share-based Payment Arrangement, Employee [Member] Outside directors Share-based Payment Arrangement, Nonemployee [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Stock-based compensation Share-based Payment Arrangement, Expense Income tax benefit Share-based Payment Arrangement, Expense, Tax Benefit Changes in the Liability for Product Warranty Claim Costs Schedule of Product Warranty Liability [Table Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Weighted Average Weighted Average [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Schedule of Estimated Future Amortization expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2024 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Intangible assets, net Finite-Lived Intangible Assets, Net Remaining weighted average amortization period Finite-Lived Intangible Assets, Remaining Amortization Period United States People's Republic of China Mexico MEXICO All other countries All Other Countries [Member] All Other Countries [Member] Long-lived tangible assets Long-Lived Assets BASIC Earnings Per Share, Basic [Abstract] Weighted-average common shares outstanding (in shares) Basic earnings (loss) per share (in dollars per share) DILUTED Earnings Per Share, Diluted [Abstract] Dilutive effect of stock options, restricted stock and common stock warrants (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted-average common shares outstanding on a diluted basis (in shares) Diluted earnings (loss) per share (in dollars per share) Inventories, Net Schedule of Inventory, Current [Table Text Block] Changes in Reserve for Excess and Obsolete Inventory Inventory Valuation Reserves [Table Text Block] Inventory valuation reserves. Purchases from Significant Suppliers Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Description of Business Nature of Operations [Text Block] Changes in the Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Components of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Amortization Expense by Income Statement Caption Finite-lived Intangible Assets Amortization Expense [Table Text Block] Estimated Future Amortization Expense Related to Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Weighted average lease liability term (in years) Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Assets: ueic_AssetsLesseeAbstract [Abstract] Assets Lessee Abstract Liabilities: ueic:LiabilitiesLesseeAbstract [Abstract] Liabilities Lessee Abstract Other accrued liabilities Long-term operating lease obligations Total lease liabilities Operating Lease, Liability Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Guangzhou Factory Guangzhou Factory [Member] Guangzhou Factory [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Disposed of by Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Consideration received in sale Disposal Group, Including Discontinued Operation, Consideration Escrow deposit as percentage of purchase price Disposal Group, Including Discontinued Operation, Consideration, Escrow Deposit as Percentage of Purchase Price Disposal Group, Including Discontinued Operation, Consideration, Escrow Deposit as Percentage of Purchase Price Nonrefundable deposit Disposal Group, Including Discontinued Operation, Consideration, Nonrefundable Deposit Disposal Group, Including Discontinued Operation, Consideration, Nonrefundable Deposit Consideration receivable upon government approvals Disposal Group, Including Discontinued Operation, Consideration, Received Upon Government Approvals Disposal Group, Consideration, Received Upon Government Approvals Escrow deposit Disposal Group, Including Discontinued Operation, Escrow Deposit Disposal Group, Including Discontinued Operation, Escrow Deposit Gain on sale of Guangzhou factory Net gain on disposal Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] India subsidiary India Subsidiary [Member] India Subsidiary [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Percentage of employees eligible for benefits Defined Benefit Plan, Percentage of Employees Eligible for Benefits Percentage of employees eligible for pension benefits under defined benefit pension plan. Minimum service period of employees to be eligible under plan Defined Benefit Plan, Requisite Service Period Defined Benefit Plan, Requisite Service Period Number of days salary payable under termination, resignation, or retirement Defined Benefit Plan, Benefit Obligation, Accrual Term Per Year Of Service Provided Defined Benefit Plan, Benefit Obligation, Accrual Term Per Year Of Service Provided Asia (excluding PRC) People’s Republic of China Europe Latin America Latin America [Member] Other Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Tax provision at statutory U.S. rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Increase (decrease) in tax provision resulting from: Effective Income Tax Rate Reconciliation Amounts [Abstract] Effective Income Tax Rate Reconciliation Amounts [Abstract] State and local taxes, net Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Foreign undistributed earnings, net of credits Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Nondeductible items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Federal research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Non-territorial income Effective Income Tax Rate Reconciliation, Deduction, Extraterritorial Income Exclusion, Amount Withholding tax Effective Income Tax Rate Reconciliation, Withholding Tax Effective Income Tax Rate Reconciliation, Withholding Tax Uncertain tax positions Effective Income Tax Rate Reconciliation, Uncertain Tax Positions Effective Income Tax Rate Reconciliation, Uncertain Tax Positions Stock-based compensation Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount Federal tax rate change Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Foreign permanent benefit Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount Provision to return Effective Income Tax Rate Reconciliation, Return To Provision Effective Income Tax Rate Reconciliation, Return To Provision Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other Income (Expense), Net Other Income and Other Expense Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash provided by operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Gain on sale of Guangzhou factory Deferred income taxes Deferred Income Taxes and Tax Credits Shares issued for employee benefit plan Shares Issued for Employee Benefit Plan Shares issued for employee benefit plan. Employee and director stock-based compensation Share-based Payment Arrangement, Noncash Expense Performance-based common stock warrants Fair Value Adjustment of Warrants Impairment of long-term assets Impairment of Long-Lived Assets Held-for-use Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable and contract assets Increase (Decrease) in Receivables Inventories Increase (Decrease) in Inventories Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued income taxes Increase (Decrease) in Income Taxes Payable Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash provided by (used for) investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from sale of Guangzhou factory Proceeds from Sale of Property, Plant, and Equipment Acquisitions of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Refund of deposit received toward sale of Guangzhou factory Payments For Divestiture Of Business, Escrow Deposit Refund Payments For Divestiture Of Business, Escrow Deposit Refund Acquisitions of intangible assets Payments to Acquire Intangible Assets Acquisition of net assets of Residential Control Systems, Inc. Net cash provided by (used for) investing activities Net Cash Provided by (Used in) Investing Activities Cash provided by (used for) financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings under line of credit Proceeds from Short-term Debt Repayments on line of credit Repayments of Short-term Debt Treasury stock purchased Payments for Repurchase of Common Stock Contingent consideration payments in connection with business combinations Payment for Contingent Consideration Liability, Financing Activities Net cash provided by (used for) financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash at beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at end of period Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Income taxes paid Income Taxes Paid Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Revenue and Accounts Receivable, Net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Inventories, Net and Significant Suppliers Inventory Disclosure [Text Block] Tooling Computer equipment Property, plant and equipment, gross Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net, excluding construction in progress Property, Plant and Equipment, Net, Excluding Construction in Progress Property, Plant and Equipment, Net, Excluding Construction in Progress Total property, plant, and equipment, net Property, Plant and Equipment, Net Components of Accrued Compensation Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Zhejiang Zhen You Electronics Co. Ltd. Zhejiang Zhen You Electronics Co. Ltd. [Member] Zhejiang Zhen You Electronics Co. Ltd. [Member] Accounts Payable Accounts Payable Benchmark [Member] Accounts Payable Benchmark [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Executive Vice President Executive Vice President [Member] Affiliated Entity Affiliated Entity [Member] Related Party Transactions [Line Items] Related Party Transaction [Line Items] Accounts payable Accounts Payable Concentration risk percentage Ownership percentage in third party by executive Related Party Transaction, Ownership Percentage In Affiliated Entity Related party transaction, ownership percentage by affiliated entity Inventory purchases form related party supplier Related Party Transaction, Purchases from Related Party Cost of sales Amortization expense Amortization of Intangible Assets Leases Lessee, Operating Leases [Text Block] Stock-Based Compensation Expense Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Assumptions Used and Weighted Average Fair Value of Stock Option Grants Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Significant Option Groups Outstanding and Related Weighted Average Exercise Price and Life Information Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Non-Vested Restricted Stock Awards Activity Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Detailed Information Regarding Active Stock Incentive Plans Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Contract liabilities Contract with Customer, Liability, Current Duties Accrued Duties, Current Accrued duties. Freight and handling fees Accrued Freight and Handling Fees, Current Accrued Freight and Handling Fees, Current Product warranty claim costs Product Warranty Accrual, Current Professional fees Accrued Professional Fees, Current Sales taxes and VAT Sales and Excise Tax Payable, Current Short-term contingent consideration Business Combination, Contingent Consideration, Liability, Current Other Other Accrued Expenses, Current Other Accrued Expenses, Current. Total other accrued liabilities Other Accrued Liabilities, Current Common Stock Purchase Warrants Supply Commitment [Axis] Supply Commitment [Axis] Supply Commitment Arrangement [Domain] Supply Commitment Arrangement [Domain] Supply Threshold Supply Commitment [Member] Aggregate level of purchases, threshold one Class of Warrant or Right, Supply Threshold Level One, Amount Class of Warrant or Right, Supply Threshold Level One, Amount Aggregate level of purchases, threshold two Class of Warrant or Right, Supply Threshold Level Two, Amount Class of Warrant or Right, Supply Threshold Level Two, Amount Aggregate level of purchases, threshold three Class of Warrant or Right, Supply Threshold Level Three, Amount Class of Warrant or Right, Supply Threshold Level Three, Amount Incremental Warrants That Will Vest January 1, 2016 - December 31, 2017 Class Of Warrant Or Right, Vesting Period One, Supply Threshold Level One [Abstract] Class Of Warrant Or Right, Vesting Period One $260 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level One Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level One $300 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level Two Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level Two $340 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level Three Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level Three Maximum Potential Warrants Earned by Comcast (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One Incremental Warrants That Will Vest January 1, 2018 - December 31, 2019 Class Of Warrant Or Right, Vesting Period Two [Abstract] Class Of Warrant Or Right, Vesting Period Two [Abstract] $260 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two, Supply Threshold Level One Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two, Supply Threshold Level One $300 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two, Supply Threshold Level Two Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two, Supply Threshold Level Two $340 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two, Supply Threshold Level Three Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period One, Supply Threshold Level Three Maximum Potential Warrants Earned by Comcast (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Two Incremental Warrants That Will Vest January 1, 2020 - December 31, 2021 Class Of Warrant Or Right, Vesting Period Three [Abstract] Class Of Warrant Or Right, Vesting Period Three [Abstract] $260 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level One Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level One $300 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level Two Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level Two $340 million threshold (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level Three Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three, Supply Threshold Level Three Maximum Potential Warrants Earned by Comcast (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three Class of Warrant or Right, Number of Securities Called by Each Warrant or Right, Vesting Period Three Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Deferred tax assets: Components of Deferred Tax Assets [Abstract] Inventory reserves Deferred Tax Assets, Inventory Capitalized research costs Deferred Tax Assets, Capitalized Research Costs Deferred Tax Assets, Capitalized Research Costs Capitalized inventory costs Deferred Tax Assets, Capitalized Inventory Costs Deferred Tax Assets, Capitalized Inventory Costs Net operating losses Deferred Tax Assets, Operating Loss Carryforwards Acquired tangible assets Deferred Tax Assets, Goodwill and Intangible Assets Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Income tax credits Deferred Tax Assets, Tax Credit Carryforwards Operating lease obligations Deferred Tax Assets, Leasing Arrangements Deferred Tax Assets, Leasing Arrangements Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Amortization of intangible assets Deferred Tax Assets, Amortization of Intangible Assets Deferred Tax Assets, Amortization of Intangible Assets Total deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Depreciation Deferred Tax Liabilities, Depreciation Deferred Tax Liabilities, Depreciation Allowance for doubtful accounts Deferred Tax Liabilities, Allowance for Doubtful Accounts Deferred Tax Liabilities, Allowance for Doubtful Accounts Right of use assets Deferred Tax Liabilities, Leasing Arrangements Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax assets before valuation allowance Deferred Tax Assets, Net of Deferred Tax Liabilities, Before Valuation Allowance Deferred Tax Assets, Net of Deferred Tax Liabilities, Before Valuation Allowance Less: Valuation allowance Net deferred tax assets Deferred Tax Assets, Net Schedule of Allowance for Doubtful Accounts Accounts Receivable, Allowance for Credit Loss [Roll Forward] Balance at beginning of period Accounts Receivable, Allowance for Credit Loss, Current Additions to costs and expenses (Write-offs)/Foreign exchange effects Allowance for Doubtful Accounts Receivable, Write-Offs And Effect Of Exchange Rate Allowance for Doubtful Accounts Receivable, Write-Offs And Effect Of Exchange Rate Balance at end of period Purchase Level and Number of Warrants That Will Vest Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Assumptions Used in Valuation and Weighted Average Fair Value of Warrants Schedule of Fair Value Assumptions [Table Text Block] Schedule of Fair Value Assumptions [Table Text Block] Impact to Net Sales in Connection with Warrants and Related Income Tax Benefit Schedule of Impact To Net Sales Due To Warrants [Table Text Block] Schedule of Impact To Net Sales Due To Warrants [Table Text Block] Distribution rights (10 years) Distribution Rights [Member] Patents (10 years) Patents [Member] Trademarks and trade names (10 years) Trademarks and Trade Names [Member] Developed and core technology (5-15 years) Developed Technology Rights [Member] Capitalized software development costs (2 years) Customer relationships Customer Relationships [Member] Finite-Lived Intangible Assets, Net [Abstract] Finite-Lived Intangible Assets, Net [Abstract] Gross Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Gross value of fully amortized intangible assets Finite-Lived Intangible Assets, Fully Amortized, Gross Finite-Lived Intangible Assets, Fully Amortized, Gross Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Trade Receivables Trade Accounts Receivable [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Dish Network Corporation Dish Network, LLC [Member] Dish Network, LLC [Member] Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Accounts receivable, net Receivables, Net, Current 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Lease liabilities Tooling and Equipment Tooling And Equipment [Member] Tooling And Equipment [Member] Factory Equipment Factory Equipment [Member] Factory Equipment [Member] Depreciation expense Depreciation Net book value of asset Impairment associated with closure and sale of factory Impairment of Long-Lived Assets to be Disposed of Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Not Designated as Hedging Instrument Other Income (Expense), Net Other Nonoperating Income (Expense) [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Exercise Price Range [Axis] Exercise Price Range [Axis] Exercise Price Range [Domain] Exercise Price Range [Domain] $19.25 to $27.07 Exercise Price Range 1 [Member] Exercise Price Range 1 [Member] $35.28 to $44.95 Exercise Price Range 2 [Member] Exercise Price Range 2 [Member] $51.38 to $65.54 Exercise Price Range 3 [Member] Exercise Price Range 3 [Member] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Range of exercise prices, lower range limit (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Range of exercise prices, upper range limit (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Options Outstanding Stock Options Outstanding [Abstract] Stock Options Outstanding [Abstract] Number outstanding (in shares) Weighted-average remaining contractual term (in years) Weighted average exercise price (in dollars per share) Options Exercisable Stock Options Exercisable [Abstract] Stock Options Exercisable [Abstract] Number exercisable (in shares) Weighted-average exercise price (in dollars per share) Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Cost of sales Selling, general and administrative expenses Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Operating lease expense Lease, Cost Operating cash outflows from operating leases Operating Lease, Payments Operating lease right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Comcast Comcast Corporation [Member] Comcast Corporation [Member] Supply Threshold Number of shares called by warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Exercise price of warrants (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Number of vesting periods Class of Warrant or Right, Number of Vesting Periods Class of Warrant or Right, Number of Vesting Periods Term of successive vesting periods Class of Warrant or Right, Term of Successive Vesting Periods Class of Warrant or Right, Term of Successive Vesting Periods Vesting period one Class of Warrant or Right, Vesting Period One Class of Warrant or Right, Vesting Period One Aggregate level of purchases, $260 million threshold Aggregate level of purchases, $340 million threshold Number of vested warrants outstanding (in shares) Class of Warrant or Right, Vested Warrants Outstanding Class of Warrant or Right, Vested Warrants Outstanding Unearned underlying shares (in shares) Class of Warrant or Right, Unissued Supply threshold amount Class of Warrant or Right, Supply Threshold, Amount Class of Warrant or Right, Supply Threshold, Amount Aggregate unrecognized estimated fair value of unvested warrants Class of Warrant or Right, Unvested, Unrecognized Fair Value Class of Warrant or Right, Unvested, Unrecognized Fair Value Number of warrants vested in period (in shares) Class of Warrant or Right, Vested Warrants Class of Warrant or Right, Vested Warrants Maximum warrants available to vest (in shares) Class Of Warrant Or Right, Maximum Number Of Warrants Available For Vesting In Period Class Of Warrant Or Right, Maximum Number Of Warrants Available For Vesting In Period Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] Trade receivables, gross Accounts Receivable, before Allowance for Credit Loss, Current Allowance for doubtful accounts Allowance for sales returns Allowance for Sales Returns Allowance for sales returns. Net trade receivables Accounts Receivable, after Allowance for Credit Loss, Current Other Other Receivables, Net, Current Accounts receivable, net ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net Contract assets Contract with Customer, Asset, Net, Current Inventories, net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Income tax receivable Income Taxes Receivable, Current Total current assets Assets, Current Property, plant and equipment, net Goodwill Intangible assets, net Operating lease right-of-use assets Deferred income taxes Deferred Income Tax Assets, Net Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Line of credit Accrued compensation Accrued sales discounts, rebates and royalties Accrued Sales Discounts Rebates and Royalties, Current Accrued Sales Discounts Rebates and Royalties, Current Accrued income taxes Accrued Income Taxes, Current Other accrued liabilities Total current liabilities Liabilities, Current Long-term liabilities: Liabilities, Noncurrent [Abstract] Long-term contingent consideration Deferred income taxes Deferred Income Tax Liabilities, Net Income tax payable Accrued Income Taxes, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding Preferred Stock, Value, Issued Common stock, $0.01 par value, 50,000,000 shares authorized; 24,118,088 and 23,932,703 shares issued on December 31, 2019 and 2018, respectively Common Stock, Value, Issued Paid-in capital Additional Paid in Capital, Common Stock Treasury stock, at cost, 10,174,199 and 10,116,459 shares on December 31, 2019 and 2018, respectively Treasury Stock, Value Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Property Subject to Rent Escalations Property Subject to Rent Escalations [Member] Property Subject to Rent Escalations [Member] Yangzhou Yangzhou [Member] Yangzhou [Member] Buildings on Prepaid Land Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Lessee term of contract Lessee, Operating Lease, Term of Contract Rent expense Operating Leases, Rent Expense, Net Impairment of ROU asset Operating Lease, Impairment Loss Short-term lease costs Short-term Lease, Cost Number of operating leases not yet commenced Lessee Operating Lease Lease Not Yet Commenced Number Of Leases Lessee Operating Lease Lease Not Yet Commenced Number Of Leases Initial lease liability of operating leases that have not yet commenced Operating Lease Lease Not Yet Commenced Lease Liability Operating Lease Lease Not Yet Commenced Lease Liability Term of operating lease that has not yet commenced Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Recognition period for rent expense Operating Lease, Rent Expense Recognition Period Operating Lease, Rent Expense Recognition Period Liability related to rent escalations Accrued Rent Allowance for moving expenses and tenant improvements Operating Leases, Allowance for Moving Expenses and Tenant Improvements Operating Leases, Allowance for Moving Expenses and Tenant Improvements Prepaid lease assets, remaining amortization period Remaining depreciable period of asset Property, Plant and Equipment, Remaining Depreciable Period Property, Plant and Equipment, Remaining Depreciable Period Comcast Corporation AT&T AT&T [Member] AT&T [Member] Concentration risk percentage Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Reduction to net sales Class of Warrant or Right, Contra Revenue Class of Warrant or Right, Contra Revenue Income tax benefit Class of Warrant or Right, Income Tax Expense (Benefit) Class of Warrant or Right, Income Tax Expense (Benefit)