Inventory Disclosure [Abstract] Finished goods Inventory, Finished Goods, Gross Raw materials Inventory, Raw Materials, Gross Total inventories Inventory, Net Accounting Policies [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Difference between Revenue Guidance in Effect before and after Topic 606 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Calculated under Revenue Guidance in Effect before Topic 606 Calculated under Revenue Guidance in Effect before Topic 606 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Condensed Consolidated Balance Sheet changes Statement of Financial Position [Abstract] Accounts receivable, net of allowances Accounts Receivable, Net, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Accrued liabilities Accrued Liabilities, Current Sales returns liability Customer Refund Liability, Current Deferred revenue Deferred Revenue, Current Retained earnings Retained Earnings (Accumulated Deficit) Condensed Consolidated Statements of Operations changes Income Statement [Abstract] Net sales Revenue, Net Cost of sales Cost of Goods Sold Income Tax Disclosure [Abstract] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Risks and Uncertainties [Abstract] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk Geographic Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue from Contract with Customer Revenue from Contract with Customer [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES Europe Europe [Member] Other Other Countries [Member] A second specified group of foreign countries about which segment information is provided by the entity. Concentration Risk [Line Items] Concentration Risk [Line Items] Percentage of sales Concentration Risk, Percentage Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Employees Employees [Member] One of the ranking employees of the entity appointed to the position. Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, general, and administrative expense Selling, General and Administrative Expenses [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [Member] Minimum Minimum [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted stock units Restricted Stock Units (RSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock-Based Compensation (Textual) Stock Based Compensation Textual [Abstract] Restricted stock granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Weighted-average fair value of restricted stock per share (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 Term of restricted stock vested Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Shares granted in excess of original grant Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease) Stock-based compensation expense Allocated Share-based Compensation Expense Adjustments to additional paid-in capital Adjustments Related to Tax Withholding for Share-based Compensation Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Advertising and marketing Marketing and Advertising Expense Selling, general and administrative Selling, General and Administrative Expense Transaction costs Business Combination, Acquisition Related Costs Impairment of intangible asset Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) Amortization of intangible assets Amortization of Intangible Assets Total operating expenses Operating Expenses Income (loss) from operations Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest expense Interest Expense Other income (expense) Other Nonoperating Income (Expense) Total other expense Nonoperating Income (Expense) Income (loss) before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (provision) benefit Income Tax Expense (Benefit) Net income (loss) Net Income (Loss) Attributable to Parent Earnings (loss) per share attributable to stockholders: Earnings Per Share, Basic and Diluted [Abstract] Basic earnings (loss) per share (in usd per share) Earnings Per Share, Basic Diluted earnings (loss) per share (in usd per share) Earnings Per Share, Diluted Earnings Per Share [Abstract] Net income (loss) Weighted average shares outstanding: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Dilutive effect of restricted stock units and warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings (loss) per share: Basic (in usd per share) Diluted (in usd per share) Restricted stock units Stock Issued During Period, Shares, Restricted Stock Award, Gross Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Trading Symbol Trading Symbol Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] 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] Customer relationships Customer Relationships [Member] Trade names Trade Names [Member] Patents and technology Patented Technology [Member] Non-compete agreements Noncompete Agreements [Member] Other Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total amortizable intangible assets Intangible Assets, Net (Including Goodwill) INVENTORIES Inventory Disclosure [Text Block] United States Concentration Risk [Line Items] Schedules of concentration of accounts receivable and sales Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of percentage of sales by geographic region Schedules Of Concentration Risk Of Sales By Geographic Region [Table Text Block] Tabular disclosure of the nature of a concentration risk of sales by geographic region. Receivables, which comprises the balance in accounts receivable, net of allowances Right of return assets, which are included in prepaid expenses and other current assets Contract with Customer, Right to Recover Product, Current Contract liabilities, which are included in accrued liabilities Contract with Customer, Liability, Current Refund liabilities, which are included in sales return liability Contract with Customer, Refund Liability, Current Warranty liabilities, which are included in sales return liability Standard Product Warranty Accrual, Current Canceled Patent Canceled Patent [Member] Canceled Patent [Member] Additions to long-lived intangible assets Indefinite-lived Intangible Assets Acquired Impairment loss on patent Impairment of Intangible Assets, Finite-Lived, Gross Impairment of Intangible Assets, Finite-Lived, Gross Accumulated amortization written off Finite-Lived Intangible Assets, Accumulated Amortization Written Off Finite-Lived Intangible Assets, Accumulated Amortization Written Off Impairment of finite-lived intangible asset Impairment of Intangible Assets, Finite-lived Finite-lived intangible assets, net Finite-Lived Intangible Assets, Net Weighted average useful lives of amortizable intangible assets Finite-Lived Intangible Asset, Useful Life Debt Disclosure [Abstract] DEBT AND LINE OF CREDIT Debt Disclosure [Text Block] NATURE OF OPERATIONS AND BASIS OF PRESENTATION Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Allowances for doubtful accounts Allowance for Doubtful Accounts Receivable Accumulated depreciation on property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated amortization on intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Deferred loan costs, current Deferred Costs, Current Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Treasury stock, common shares Treasury Stock, Shares Schedule of long-term debt, net Schedule of Long-term Debt Instruments [Table Text Block] Schedule of future minimum rental payments required under the operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of changes in gross long-lived intangible assets Schedule Of Changes In Gross Long Lived Intangible Assets [Table Text Block] Tabular disclosure changes in gross long lived intangible assets. Schedule of long-lived intangible assets, net of amortization Schedule of Finite-Lived Intangible Assets [Table Text Block] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Screen Protection Screen Protection [Member] Screen Protection [Member] Power Management Power Management [Member] Power Management [Member] Power Cases Power Cases [Member] Power Cases [Member] Audio Audio [Member] Audio [Member] Keyboards Keyboards [Member] Keyboards [Member] Other Other Products and Services [Member] Other Products and Services [Member] Product Concentration Risk Product Concentration Risk [Member] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] CONCENTRATIONS Concentration Risk Disclosure [Text Block] Inventory deposits with third-party manufacturers Inventory Deposit Represents inventory deposits with third party manufacturers. Subsequent Events [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Contract with Customer, Asset and Liability Contract with Customer, Asset and Liability [Table Text Block] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] EARNINGS (LOSS) PER SHARE Earnings Per Share [Text Block] Schedule of reconciliation of the numerator and denominator used to calculate basic earnings (loss) per share and diluted earnings (loss) per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Statement of Comprehensive Income [Abstract] Net income (loss) Other comprehensive gain, net of tax: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Foreign currency translation gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Total other comprehensive income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Line of credit Long-term Line of Credit Long-term debt, net of deferred loan costs of $141 Other Long-term Debt Total debt outstanding Long-term Debt Current portion of line of credit and long-term debt, net of deferred loan costs of $141 Long-term Debt, Current Maturities Total long-term debt outstanding Long-term Debt, Excluding Current Maturities Equity [Abstract] Authorized stock repurchase amount Stock Repurchase Program, Authorized Amount Remaining amount authorized under stock repurchase program Stock Repurchase Program, Remaining Authorized Repurchase Amount Treasury stock common, repurchases Treasury Stock Common Shares Purchase Number of previously issued common shares repurchased by the issuing entity and held in treasury. Cash consideration paid for purchase of common stock Payments for Repurchase of Common Stock Commissions paid to brokers Payments for Commissions Weighted average price per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Stock-based compensation Share-based Compensation Depreciation and amortization Depreciation, Depletion and Amortization Deferred income taxes Deferred Income Tax Expense (Benefit) Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Amortization of deferred loan costs Amortization of Debt Issuance Costs Impairment of intangible asset Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Income tax payable Increase (Decrease) in Income Taxes Payable Other assets Increase (Decrease) in Other Noncurrent Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued liabilities Increase (Decrease) in Accrued Liabilities Sales returns liability Increase (Decrease) In Sales Return Liability The increase (decrease) during the reporting period in the liability for sales returns. Accrued wages and wage related expenses Increase (Decrease) in Employee Related Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Other Increase (Decrease) in Other Operating Liabilities Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from disposal of equipment Proceeds from Sale of Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from revolving credit facility Proceeds from Lines of Credit Payments on revolving credit facility Repayments of Long-term Lines of Credit Payments on term loan facility Repayments of Notes Payable Purchase of treasury stock Payment of withholdings on restricted stock units Payments Related to Tax Withholding for Share-based Compensation Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of foreign currency exchange rates on cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of the period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of the period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid Cash paid during the period for taxes, net Income Taxes Paid, Net Supplemental schedule of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Purchase of fixed assets financed through accounts payable Noncash or Part Noncash Acquisition, Payables Assumed Withholdings tax on restricted stock units recorded in accrued wages and wage related expenses Tax Withholding for Share-based Compensation Accrued But Not Yet Incurred Tax Withholding for Share-based Compensation Accrued But Not Yet Incurred Distribution Channel Concentration Risk Distribution Channel Concentration Risk [Member] Distribution Channel Concentration Risk [Member] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Indirect channel Sales Channel, Through Intermediary [Member] Website Sales Channel, Directly to Consumer, Website [Member] Sales Channel, Directly to Consumer, Website [Member] Franchisees Sales Channel, Directly to Consumer, Franchisees [Member] Sales Channel, Directly to Consumer, Franchisees [Member] Line of Credit Facility [Table] Line of Credit Facility [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Base Rate Base Rate [Member] Eurodollar Eurodollar [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] New Credit Agreement Security Agreement [Member] Security Agreement. Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Line of Credit Line of Credit [Member] Letter of Credit Letter of Credit [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit facility, interest rate Debt Instrument, Basis Spread on Variable Rate Line of credit facility, commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Accrued liabilities Sales returns liability Deferred revenue Retained earnings INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] TREASURY STOCK Treasury Stock [Text Block] INCOME TAXES Income Tax Disclosure [Text Block] Schedule of inventories Schedule of Inventory, Current [Table Text Block] Rent expense Operating Leases, Rent Expense Customer Concentration Risk Customer Concentration Risk [Member] Accounts Receivable Accounts Receivable [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Superior Communications, Inc. (“Superior”) Customer [Member] Best Buy Co., Inc. (“Best Buy”) Customer One [Member] It represents the customer that accounts for 10 percent or more of the entity's revenues. Concentration risk percentage ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net of allowances of $474 and $734 Inventories Total current assets Assets, Current Property and equipment, net of accumulated depreciation of $12,979 and $12,540 Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net of accumulated amortization of $69,440 and $66,639 Intangible Assets, Net (Excluding Goodwill) Deferred income tax assets 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 Income tax payable Taxes Payable, Current Accrued wages and wage related expenses Employee-related Liabilities, Current Line of credit Line of Credit, Current Current portion of long-term debt, net of deferred loan costs of $141 Other Long-term Debt, Current Total current liabilities Liabilities, Current Line of credit Total liabilities Liabilities Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.001 par value; 100,000 shares authorized; 34,416 and 34,104 shares issued Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock, 6,065 and 6,065 common shares at cost Treasury Stock, Value Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity December 31, 2016 Indefinite-Lived Intangible Assets (Excluding Goodwill) Impairment loss on patent March 31, 2017 Remaining 2018 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2019 Operating Leases, Future Minimum Payments, Due in Two Years 2020 Operating Leases, Future Minimum Payments, Due in Three Years 2021 Operating Leases, Future Minimum Payments, Due in Four Years 2022 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total operating lease commitments Operating Leases, Future Minimum Payments Due STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block]