Document and Entity Information [Abstract] Document and entity information. ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net Receivables, Net, Current Inventory, Net Inventories, net Inventories, net Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Deferred income taxes Deferred Tax Assets, Net, Current Assets, Current, Total Total current assets Property, plant, and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill, Closing balance Goodwill, Opening balance Goodwill Finite-Lived Intangible Assets, Net Net Total Intangible assets, net Other assets Other Assets, Noncurrent Deferred income taxes Deferred Tax Assets, Net, Noncurrent Assets, Total Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current U.S. Bank Revolving Credit Line Line of Credit, Current Line of credit U.S. Bank Term Loan Facility Notes Payable, Current Notes payable Accrued Sales Discounts Rebates and Royalties Accrued sales discounts, rebates and royalties Accrued sales discounts rebates and royalties. Accrued income taxes Accrued Income Taxes, Current Accrued compensation Employee-related Liabilities, Current Deferred income taxes Deferred Tax Liabilities, Current Other Accrued Liabilities, Current Other accrued expenses Liabilities, Current, Total Total current liabilities Long-term liabilities: Liabilities, Noncurrent [Abstract] Deferred income taxes Deferred Tax Liabilities, Noncurrent Income tax payable Accrued Income Taxes, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Liabilities, Total Total 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 Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, $0.01 par value, 50,000,000 shares authorized; 21,368,580 and 21,142,915 shares issued on September 30, 2012 and December 31, 2011, respectively Common Stock, Value, Issued Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Paid-in capital Additional Paid in Capital, Common Stock Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive (loss) income Retained earnings Retained Earnings (Accumulated Deficit) Stockholders' Equity before Treasury Stock Stockholders' equity before treasury stock Less cost of common stock in treasury, 6,360,302 and 6,353,035 shares on September 30, 2012 and December 31, 2011, respectively Treasury Stock, Value Treasury Stock, Shares Stock repurchased under the Board authorization approved Treasury stock, shares Stockholders' Equity Attributable to Parent, Total Total stockholders' equity Liabilities and Equity, Total Total liabilities and stockholders' equity Revenue, Net Total net sales Net sales Cost of sales Cost of Goods and Services Sold Gross Profit Gross profit Research and development expenses Research and Development Expense Selling, General and Administrative Expense Selling, general and administrative expenses Operating Income (Loss) Operating income Nonoperating Income (Expense) Other income (expense), net Other income (expense), net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before provision for income taxes Income Tax Expense (Benefit) Provision for income taxes Income tax expense Net Income (Loss) Attributable to Parent Net income Net income Earnings per share: Earnings Per Share [Abstract] Earnings Per Share, Basic Basic earnings per share Basic Earnings Per Share, Diluted Diluted earnings per share Diluted Shares used in computing earnings per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding Basic Weighted Average Number of Shares Outstanding, Diluted Weighted-average common shares outstanding on a diluted basis Diluted Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Net Cash Provided by (Used in) Operating Activities [Abstract] Cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization Depreciation, Depletion and Amortization Provision for doubtful accounts Provision for Doubtful Accounts Inventory Write-down Provision for inventory write-downs Deferred Income Tax Expense (Benefit) Deferred income taxes Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefit from stock-based compensation Shares Issued for Employee Benefit Plan Shares issued for employee benefit plan Shares issued for employee benefit plan. Share-based Compensation Stock-based compensation Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Increase (Decrease) in Receivables Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued income taxes Increase (Decrease) in Income Taxes Payable Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Cash used for investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments to Acquire Businesses, Net of Cash Acquired Acquisition of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Acquisition of intangible assets Net Cash Provided by (Used in) Investing Activities Net cash used for investing activities Cash used for financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Issuance of debt Proceeds from Issuance of Long-term Debt Repayments of Notes Payable Payment of debt Proceeds from stock options exercised Proceeds from Stock Options Exercised Payments for Repurchase of Common Stock Treasury stock purchased Excess tax benefit from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Net Cash Provided by (Used in) Financing Activities Net cash used for financing activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Basis of Presentation and Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation and Significant Accounting Policies [Abstract] Cash and Cash Equivalents Cash and Cash Equivalents Disclosure [Text Block] Cash and Cash Equivalents [Abstract] Accounts Receivable Net and Revenue Concentration Disclosure [Text Block] Accounts Receivable, Net and Revenue Concentrations Accounts receivable net and revenue concentrations. Accounts Receivable, Net and Revenue Concentrations [Abstract] Accounts receivable, net and revenue concentrations. Inventory and Significant Suppliers Disclosure [Text Block] Inventories, Net and Significant Suppliers Inventories net and significant suppliers. Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Intangible Assets, Net [Abstract] Notes Payable and Line of Credit [Text Block] Notes payable and line of credit. Notes Payable and Line of Credit Notes Payable and Line of Credit [Abstract] Notes payable and line of credit. Income Taxes Income Tax Disclosure [Text Block] Income Taxes [Abstract] Accrued Compensation [Text Block] Accrued compensation. Accrued Compensation Other Accrued Expenses [Text Block] Other accrued expenses. Other Accrued Expenses Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies [Abstract] Treasury Stock Treasury Stock [Text Block] Treasury Stock [Abstract] Business Segment and Foreign Operations Segment Reporting Disclosure [Text Block] Business Segment and Foreign Operations [Abstract] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation [Abstract] Other Income (Expense), Net Other Income and Other Expense Disclosure [Text Block] Other Income (Expense), Net [Abstract] Earnings Per Share Earnings Per Share [Text Block] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivatives [Abstract] Amendment Flag Current Fiscal Year End Date Document Period End Date Document Type Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Filer Category Entity Registrant Name Document Fiscal Period Focus Document Fiscal Year Focus Consolidated Balance Sheets [Abstract] Consolidated Income Statements [Abstract] Consolidated Comprehensive Income Statements [Abstract] Consolidated Statements of Cash Flows [Abstract] Income tax payments Income Taxes Paid Interest Paid Interest payments Interest Income (Expense), Nonoperating, Net Interest Income (expense), net Tax Benefit from Stock Options Exercised and Vested Restricted Stock Tax benefit from stock options exercised and vested restricted stock. Tax benefit from exercise of stock options and vested restricted stock Accrued Compensation [Abstract] Other Accrued Expenses [Abstract] Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Change in foreign currency translation adjustment Consolidation, Variable Interest Entity, Policy [Policy Text Block] Estimates, Judgments and Assumptions New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Schedule of Cash and Cash Equivalents [Table Text Block] Schedule of cash and cash equivalents at fair value Fair Value, Measurements, Recurring [Member] Cash and cash equivalent on recurring basis [Member] Fair Value, Inputs, Level 1 [Member] Quoted Prices in Active Markets for Identical Assets Level 1 [Member] Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Significant Other Observable Inputs, Level 2 [Member] Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Significant Unobservable Inputs, Level 3 [Member] Level 3 [Member] Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Schedule of assets at fair value on a recurring basis Schedule of cash and cash equivalents at fair value Countries [Axis] Countries. UNITED STATES United States [Member] CAYMAN ISLANDS Cayman Islands [Member] Cash and Cash Equivalents (Textual) [Abstract] Cash and Cash Equivalents (Textual) [Abstract] Cash and cash equivalents. Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Accounts receivable Schedule of Cash and Cash Equivalents [Table] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Cash and Cash Equivalents [Line Items] All Countries [Domain] Accounts, Notes, Loans and Financing Receivable, Net, Current [Abstract] Schedule of Accounts receivable Accounts Receivable Gross Trade receivables, gross Allowance for Doubtful Accounts Receivable, Current Allowance for doubtful accounts Other Receivables, Net, Current Other receivables Accounts Receivable Net Current Accounts receivable, net Trade Receivables Held-for-sale, Net Trade receivables, net Notes, Loans and Financing Receivable, Net, Current [Abstract] Schedule of Allowance for Doubtful Accounts Schedule of Allowance for Doubtful Accounts [Table Text Block] Schedule of Allowance for Doubtful Accounts Schedule of allowance for doubtful accounts. Additions to Costs and Expenses Additions to Costs and Expenses Additions to costs and expenses. Allowance for Doubtful Accounts Receivable Balance at End of Period Balance at Beginning of Period Allowance for Doubtful Accounts Receivable, Charge-offs (Write-offs)/FX Effects Sales Revenue Goods Net Percentage Percentage of net sales to one customer Sales Returns Allowances Goods Allowance for Sales return Sales returns allowances goods. Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedule of Significant Customers to net sales Sony [Member] Sony. Sony [Member] Entity-Wide Revenue, Major Customer, Amount Net sales Entity-Wide Revenue, Major Customer, Percentage Significant Customers- Percentage to Net sales Schedule of Significant Customers to Net sales [Abstract] Schedule of Significant Customers to Net sales Schedule of significant customers to net sales. Schedule of Revenue by Major Customers, by Reporting Segments [Table] Major Customers [Axis] Name of Major Customer [Domain] Revenue, Major Customer [Line Items] Accounts Receivable, Gross, Current Accounts Receivables Entity Wide Accounts Receivables Major Customer Percentage Significant Customers- Percentage of Accounts Receivables Entity wide accounts receivables major customer percentage. Schedule of Significant Customers to Accounts Receivables [Abstract] Schedule of Significant Customers to Net sales Schedule of significant customers to accounts receivables. Schedule of Inventory, Current [Table Text Block] Schedule of Inventories Inventory, Net [Abstract] Schedule of Inventories Inventory, Work in Process, Gross Work in process Inventory, Finished Goods, Gross Finished goods Accounts Receivable, Net And Revenue Concentrations (Textual) [Abstract] Accounts receivable, net and revenue concentrations. Accounts Receivable, Net and Revenue Concentrations (Textual) [Abstract]