Business Combinations [Abstract] Business Acquisition, Pro Forma Information [Table] Business Acquisition, Pro Forma Information [Table] Business Acquisition, Pro Forma Information [Table] - Table of Pro Forma information provided in connection with one or more business acquisitions Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Spontania [Member] Spontania [Member] Spontania [Member] Sabine, Inc. [Member] Sabine, Inc. [Member] Sabine, Inc. [Member] Business Acquisition, Pro Forma Information [Line Items] Business Acquisition, Pro Forma Information [Line Items] [Line Items] for Business Acquisition, Pro Forma Information [Table] - Table of Pro Forma information provided in connection with one or more business acquisitions Revenue Revenue, Net Net income Net Income (Loss) Attributable to Parent Business Acquisition, Pro Forma Revenue Business Acquisition, Pro Forma Revenue Business Acquisition, Pro Forma Net Income (Loss) Business Acquisition, Pro Forma Net Income (Loss) Basic earnings per common share Business Acquisition, Pro Forma Earnings Per Share, Basic Diluted earnings per common share Business Acquisition, Pro Forma Earnings Per Share, Diluted Accounting Policies [Abstract] Earnings Per Share, Basic and Diluted [Abstract] Earnings Per Share, Basic and Diluted [Abstract] Numerator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic weighted average shares outstanding Weighted Average Number of Shares Outstanding, Basic Dilutive common stock equivalents using treasury stock method Incremental Common Shares Attributable to Dilutive Effect of Equity Unit Purchase Agreements Diluted weighted average shares (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic earnings per common share: (in dollars per share) Earnings Per Share, Basic Diluted earnings per common share: (in dollars per share) Earnings Per Share, Diluted Weighted average options outstanding Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Anti-dilutive options not included in the computation Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Restricted Stock [Member] Restricted Stock [Member] Reserve for Earn-out Receivable [Member] Reserve for Earn-out Receivable [Member] Cash [Member] Cash [Member] Spontania [Member] Sabine, Inc. (Sabine) [Member] Sabine, Inc. (Sabine) [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] Tradename Trade Names [Member] Patents and technology Patents and Technology [Member] Patents and Technology [Member] Proprietary software Proprietary Software [Member] Proprietary Software [Member] Other Other Credit Derivatives [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Prepaid and other Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Other long-term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Business Acquisition, Goodwill, Expected Tax Deductible Amount Business Acquisition, Goodwill, Expected Tax Deductible Amount Deferred tax asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets, Current Trade accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Accrued liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Stock registration costs Business Acquisition, Transaction Costs Total Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Shareholders' Equity and Share-based Payments [Abstract] Shareholders' Equity and 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] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Share-based Compensation Arrangement by Share-based Payment Award Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock Issued During Period, Value, Stock Options Exercised Stock Issued During Period, Value, Stock Options Exercised Stock-based compensation expense Employee Benefits and Share-based Compensation Compensation cost associated with ASC Topic 718 Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Tax benefit - stock option exercise Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Nonvested awards, total compensation cost not yet recognized, stock options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Nonvested awards, total compensation cost not yet recognized, period for recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Treasury stock, shares, acquired Treasury Stock, Shares, Acquired Stock repurchased during period, value Treasury Stock, Value, Acquired, Cost Method Common Stock, Dividends, Per Share, Declared Common Stock, Dividends, Per Share, Declared Investments, Debt and Equity Securities [Abstract] Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities Available-for-sale Securities Income Tax Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Hong Kong HONG KONG SPAIN SPAIN Minimum Minimum [Member] Maximum Maximum [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] Foreign Tax Authority [Member] Foreign Tax Authority [Member] Operating Loss Carryforwards Operating Loss Carryforwards [Line Items] Research and development tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Deferred Tax Assets, Tax Credit Carryforwards, Research Deferred Tax Assets, Tax Credit Carryforwards, Research Operating Loss Carryforwards Operating Loss Carryforwards Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Segment Reporting [Abstract] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] United States UNITED STATES All other countries Revenue from Non-US Customers [Member] Revenue from Non-US Customers [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Leases [Abstract] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [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] Manufacturing Facility [Member] Manufacturing Facility [Member] Office Building Office Building [Member] Warehouse Warehouse [Member] Salt Lake City, Utah Salt Lake City, Utah [Member] Salt Lake City, Utah [Member] Austin, Texas Austin, Texas [Member] Austin, Texas [Member] Israel ISRAEL Alachua, Florida Alachua [Member] Alachua [Member] Operating Leased Asset Operating Leased Assets [Line Items] Rent expense Operating Leases, Rent Expense, Net Amortization of deferred rent Amortization of Deferred Charges Area leased (sqft) Operating Leases, Area Leased Operating Leases, Area Leased Lessee Leasing Arrangements, Operating Leases, Renewal Term Lessee Leasing Arrangements, Operating Leases, Renewal Term Term of lease commitment Operating Leases, Term of Lease Commitment Operating Leases, Term of Lease Commitment Future minimum lease payments Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2015 Operating Leases, Future Minimum Payments, Due in Two Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2018 Operating Leases, Future Minimum Payments, Due in Five Years Total minimum lease payments Operating Leases, Future Minimum Payments Due Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table] Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table] Nonrecurring Adjustment [Axis] Nonrecurring Adjustment [Axis] Nonrecurring Adjustment [Domain] Nonrecurring Adjustment [Domain] Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] Business Acquisition, Pro Forma Information [Table Text Block] Business Acquisition, Pro Forma Information [Table Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning (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 Expired and canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations and Cancelations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations and Cancelations in Period Forfeited prior to vesting (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Outstanding, ending (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted average exercise price, outstanding, beginning (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 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 Weighted average exercise price, expired and canceled (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations and Cancelations in Period, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations and Cancelations in Period, Weighted Average Exercise Price Weighted average exercise price, forfeited prior to vesting (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price 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 Weighted average exercise price, outstanding, ending (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Vested, weighted average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Vested, weighted average remaining contractual term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Vested, aggregate intrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Outstanding, weighted average remaining contractual term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Weighted average grant date fair value, granted (in dollars per share) Business Combination, Consideration Transferred [Abstract] Noncash or Part Noncash Acquisitions [Table] Noncash or Part Noncash Acquisitions [Table] Noncash or Part Noncash Acquisitions [Line Items] Noncash or Part Noncash Acquisitions [Line Items] Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Business Combination, Consideration Transferred Business Combination, Consideration Transferred Accounting Policies - Product Warranty Liability [Abstract] Accounting Policies - Product Warranty Liability [Abstract] Schedule of Product Warranty Liability [Table Text Block] Schedule of Product Warranty Liability [Table Text Block] Risks and Uncertainties [Abstract] Significant Customers Concentration Risk Disclosure [Text Block] Schedule of Available-for-sale Securities Reconciliation Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Marketable Securities Investments Classified by Contractual Maturity Date [Table Text Block] Available-for-sale Marketable Securities Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Inventory [Axis] Inventory [Axis] Inventory [Domain] Inventory [Domain] Statement [Line Items] Statement [Line Items] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Marketable securities Marketable Securities, Current Receivables, net of allowance for doubtful accounts of $58 and $129, as of December 31, 2014 and 2013 respectively Accounts Receivable, Net, Current Inventories Inventory, Net Deferred Costs, Current Deferred Costs, Current Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid expenses and other assets Other Assets, Current Total current assets Assets, Current Long-term marketable securities Marketable Securities, Noncurrent Long-term inventories, net Inventory, Noncurrent Property and equipment, net Property, Plant and Equipment, Net Intangibles, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Deferred product revenue Deferred Revenue, Current Total current liabilities Liabilities, Current Deferred rent Deferred Rent Credit, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Shareholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock, par value $0.001, 50,000,000 shares authorized, 9,097,827 and 8,986,080 shares issued and outstanding as of December 31, 2014 and 2013, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total shareholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and shareholders' equity Liabilities and Equity Schedule of Deferred Revenue, COGS, and Gross Margin [Abstract] Schedule of Deferred Revenue, COGS, and Gross Margin [Abstract] Schedule of Deferred Revenue and Associated Cost of Goods Sold and Gross Profit [Table Text Block] Schedule of Deferred Revenue and Associated Cost of Goods Sold and Gross Profit [Table Text Block] Schedule of Deferred Revenue and Associated Cost of Goods Sold and Gross Profit [Table Text Block] Movement in Standard Product Warranty Accrual Movement in Standard Product Warranty Accrual [Roll Forward] Balance at the beginning of year Product Warranty Accrual Accruals/additions Product Warranty Accrual, Warranties Issued Usage/claims Product Warranty Accrual, Payments Balance at end of year Components of Deferred Tax Assets and Liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] Deferred revenue, current Deferred Tax Assets, Deferred Income, Current Deferred Tax Assets, Deferred Income, Current Intangibles and related other, long-term Deferred Tax Liabilities, Intangible Assets, Long Term Deferred Tax Liabilities, Intangible Assets, Long Term Deferred Tax Asset, Intangible Assets, Long Term Deferred Tax Asset, Intangible Assets, Long Term Deferred Tax Asset, Intangible Assets, Long Term - Intangible asset portion of deferred tax assets Deferred Tax Asset, Inventory, Current Deferred Tax Asset, Inventory, Current Deferred Tax Asset, Inventory, Current - Deferred Tax Asset portion relating to inventory. Net operationg loss carryforwards, long-term Deferred Tax Assets, Operating Loss Carryforwards, Long Term Deferred Tax Assets, Operating Loss Carryforwards, Long Term Accrued expenses, current Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities, Current Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities, Current Deferred Tax Asset, Expenses Long Term Deferred Tax Asset, Expenses Long Term Deferred Tax Asset, Expenses Long Term - Long Term portion of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Stock-based compensation, long-term Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Long Term Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost, Long Term Allowance for sales returns and doubtful accounts, current Deferred Tax Asset, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts, Current Deferred Tax Asset, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts, Current Difference in property and equipment basis, long-term Deferred Tax Assets, Property Plant and Equipment, Difference in Basis, Long Term Deferred Tax Assets, Property Plant and Equipment, Difference in Basis, Long Term Other, current Deferred Tax Asset, Other, Current Deferred Tax Asset, Other, Current Other, long-term Deferred Tax Assets, Other, Long Term Deferred Tax Assets, Other, Long Term Total net deferred income tax assets, current Deferred Tax Assets, Gross, Current Total net deferred income tax asset, long-term Deferred Tax Assets, Gross, Noncurrent Less: Valuation allowance, current Deferred Tax Assets, Valuation Allowance, Current Less: valuation allowance, long-term Deferred Tax Assets, Valuation Allowance, Noncurrent Net deferred income tax asset (liability), current Net deferred income tax asset (liability), long-term Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Common Stock: 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 Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, sharse issued (in shares) Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Inventory Disclosure [Abstract] Inventory, Current [Table] Inventory, Current [Table] Inventory [Line Items] Inventory [Line Items] Schedule of Inventory, Current and Non-Current [Table Text Block] Schedule of Inventory, Current and Non-Current [Table Text Block] Schedule of Inventory, Current and Non-Current [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Finite-lived intangible assets, useful life Finite-Lived Intangible Asset, Useful Life Payables and Accruals [Abstract] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Fiscal Year Fiscal Period, Policy [Policy Text Block] Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Concentration Risk Concentration Risk, Policy [Policy Text Block] Concentration Risk, Policy [Policy Text Block] Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Marketable Securities Investment, Policy [Policy Text Block] Accounts Receivable Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Sales and Similar Taxes Sales and Similar Taxes [Policy Text Block] Sales and Similar Taxes [Policy Text Block] Shipping and Handling Costs Shipping and Handling Cost, Policy [Policy Text Block] Warranty Costs Standard Product Warranty, Policy [Policy Text Block] Advertising Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block] Research and Product Development Costs Research and Development Expense, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Share-Based Payment Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Document and Entity Information -- None. No documentation exists for this element. -- Entity Registrant Name Entity Registrant Name Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Amendment Description Amendment Description Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Entity Filer Category Entity Filer Category Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Income Taxes Income Tax Disclosure [Text Block] Subsequent Event [Table] Subsequent Event [Table] Dividends [Axis] Dividends [Axis] Dividends [Domain] Dividends [Domain] QuarterlyDividend-Q3 [Member] QuarterlyDividend-Q3 [Member] QuarterlyDividend-Q3 [Member] - Dividend declared for a particular quarter QuarterlyDividend-Q1 [Member] QuarterlyDividend-Q1 [Member] QuarterlyDividend-Q1 [Member] - Dividend declared for a particular quarter QuarterlyDividend-Q2 [Member] QuarterlyDividend-Q2 [Member] QuarterlyDividend-Q2 [Member] - Dividend declared for a particular quarter Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Dividends Payable, Date of Record Dividends Payable, Date of Record Dividends Payable, Date Declared Dividends Payable, Date Declared Dividends Payable, Date to be Paid Dividends Payable, Date to be Paid Fair Value Disclosures [Abstract] Fair Value of the Financial Instruments Re-measured by the Company Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Other Accrued Liabilities [Abstract] Other Accrued Liabilities [Abstract] Other Commitments [Table] Other Commitments [Table] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Other Current Liabilities [Member] Other Current Liabilities [Member] Dividend Declared [Member] Dividend Declared [Member] Marketing Incentive [Member] Marketing Incentive [Member] Marketing Incentive [Member] - Portion of other accrued liabilities relating to general sales and marketing incentives and activities. Warranty Obligations [Member] Warranty Obligations [Member] Other Liabilities [Member] Other Liabilities [Member] Other Commitments [Line Items] Other Commitments [Line Items] Accrued Liabilities, Current Goodwill [Roll Forward] Beginning goodwill, gross Goodwill, Gross Beginning acculumlated impairment losses Goodwill, Impaired, Accumulated Impairment Loss Balance at the beginning of the year Goodwill acquired during the year Goodwill, Acquired During Period Ending goodwill, gross Ending accumulated impairment losses Balance at end of year Property, Plant and Equipment [Abstract] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Losses incurred on valuation of inventory and write-off of obsolete inventory Loss On Inventory Valuation With Obsolete Inventory Write Off Loss On Inventory Valuation With Obsolete Inventory Write Off Current: Raw materials Inventory, Raw Materials, Net of Reserves Finished goods (including distributor channel inventories) Inventory, Finished Goods, Net of Reserves Inventory, including distributor channel inventories, net Inventory, including distributor channel inventories, net Inventory, including distributor channel inventories, net - Inventories inclusive of inventory amounts reported in connection with the deferral of distributor channel sales. Long-term: Assets, Noncurrent [Abstract] Raw materials Inventory, Noncurrent, Raw Materials, Net of Reserves Inventory, Noncurrent, Raw Materials, Net of Reserves Finished goods Inventory, Noncurrent, Finished Goods, Net of Reserves Inventory, Noncurrent, Finished Goods, Net of Reserves Inventories, long-term Inventory, Parts and Components, Net of Reserves Inventory, Parts and Components, Net of Reserves Product return policy, number of days Product Return Policy, Number of Days Product Return Policy, Number of Days Product return policy, threshhold, not to exceed net purchases during preceeding quarter, percent Product Return Policy, Threshhold, Not to Exceed Net Purchases During Preceeding Quarter, Percent Product Return Policy, Threshhold, Not to Exceed Net Purchases During Preceeding Quarter, Percent Advertising expense Advertising Expense Deferred Tax Assets, Valuation Allowance Deferred Tax Assets, Valuation Allowance Incentive Plan, 1998 Incentive Plan, 1998 [Member] Incentive Plan, 1998 [Member] Equity Incentive Plan, 2007 Equity Incentive Plan, 2007 [Member] Equity Incentive Plan, 2007 [Member] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Director and Officer Director and Officer [Member] Director and Officer [Member] Employee [Member] Employee [Member] Employee [Member] Employee Stock Employee Stock [Member] Employee Stock Ownership Plan (ESOP), Plan [Domain] Employee Stock Ownership Plan (ESOP), Plan [Domain] Number of share-based compensation plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Options, grants in period, gross Share-based payment award, accelerated vesting, number Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number Share-based payment award, number of shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based payment award, expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Share-based payment award, options, outstanding, number Number of options authorized and unissued Share based Compensation Arrangement by Share based Payment Award, Number of Shares Authorized and Unissued Share based Compensation Arrangement by Share based Payment Award, Number of Shares Authorized and Unissued Share-based payment award, maximum employee subscription rate Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Number of shares contributed by employer per share of employee contributed shares Share-based Compensation Arrangement by Share-based Payment Award, Description Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment Property, Plant and Equipment [Line Items] Property, plant and equipment, estimated useful lives Property, Plant and Equipment, Useful Life Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Investments, Debt and Equity Securities in Unrealized Loss Position [Abstract] Investments, Debt and Equity Securities in Unrealized Loss Position [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Securities by Secondary Maturity Class [Axis] Securities by Secondary Maturity Class [Axis] Securities by Secondary Maturity Class [Axis] - The term to maturity axis classification for item which receive a primary non-specific term tag but require term distinction in note disclosure. The members under this domain indicate either a short-term or a long-term classification. Securities by Secondary Maturity Class [Domain] Securities by Secondary Maturity Class [Domain] [Domain] for Securities by Secondary Maturity Class [Axis] - The term to maturity axis classification for item which receive a primary non-specific term tag but require term distinction in note disclosure. The members under this domain indicate either a short-term or a long-term classification. Short-term Investments [Member] Short-term Investments [Member] Long-term Investments [Member] Long-term Investments [Member] Long Term Investment [Member] - Standard long-term investments in securities. This includes long-term investments distinguished from "Other Long-term Investments" for which the title implies investments which are not standard in nature. Securities with Unrealized Gains or Losses [Axis] Securities with Unrealized Gains or Losses [Axis] Securities with Unrealized Gains or Losses [Axis] Security Gain or Loss Position [Domain] Security Gain or Loss Position [Domain] [Domain] for Security Gain or Loss Position [Axis] Loss Position [Member] Loss Position [Member] Loss Position [Member] - Securities in an unrealized loss position as of the balance sheet date. This member is to be used for schedules which require the distinction of short-term vs long-term securities but where loss position securites must also be distinguished. Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Municipal Bonds [Member] Municipal Bonds [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Current Available-for-sale Securities, Current Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Available-for-sale Securities, Noncurrent Available-for-sale Securities, Noncurrent Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Abstract] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Abstract] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Recognized Identified Assets 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Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Major Types of Debt and Equity Securities [Axis] Investments, Fair Value Disclosure Investments, Fair Value Disclosure Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Deferred Revenue Disclosure [Abstract] Deferred Revenue Disclosure [Abstract] Deferred revenue Deferred gross profit Deferred Gross Profit Deferred Gross Profit Income Statement [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Cost of goods sold Cost of Goods Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Sales and marketing Selling and Marketing Expense Research and product development Research and Development Expense General and administrative General and Administrative Expense Proceeds from litigation, net Other Operating Income Total operating expenses Operating Expenses Operating income Operating Income (Loss) Other income, net Other Operating Income (Expense), Net Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Net income Basic earnings per common share Diluted earnings per common share Diluted weighted average shares outstanding Unrealized gain on available-for-sale securities, net of tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Foreign Currency Transaction Gain (Loss), before Tax Foreign Currency Transaction Gain (Loss), before Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Revenue by Geographic Area Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] 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Combination [Table Text Block] Share-based Compensation - Black-Scholes assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Finite and Indefinite Lived Intangible Assets by Major Class Schedule of Finite and Indefinite Lived Intangible Assets by Major Class [Table] Schedule of Finite and Indefinite Lived Intangible Assets by Major Class [Table] [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Proprietary Software Patents and Technology Other Intangible Assets [Member] Other Intangible Assets [Member] tradename [Member] tradename [Member] tradename [Member] Finite and Indefiite-Lived Intangible Assets [Line Items] Finite and Indefiite-Lived Intangible Assets [Line Items] Finite and Indefiite-Lived Intangible Assets [Line Items] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Finite-lived intangible assets, useful life (in years) Total finite and indefinite-lived intangible assets, gross Intangible Assets, Gross (Excluding Goodwill) Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets, net (excluding goodwill) Amortization of Intangible Assets Amortization of Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2014 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Finite-lived intangible assets, future amortization expense Finite-Lived Intangible Assets, Net Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Tax (provision) at Federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income tax (provision), net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign earnings or losses taxed at different rates Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Share-Based Payments Shareholders' Equity and Share-based Payments [Text Block] Marketable Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedules of Concentration of Risk, by Risk Factor Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of Income before Income Tax, Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Gain Contingencies [Table] Gain Contingencies [Table] Gain Contingencies, Nature [Axis] Gain Contingencies, Nature [Axis] Gain Contingency, Nature [Domain] Gain Contingency, Nature [Domain] Misappropriation of Trade Secrets [Member] Misappropriation of Trade Secrets [Member] Misappropriation of Trade Secrets [Member] Defendent [Axis] Defendent [Axis] Defendent [Axis] Defendent [Domain] Defendent [Domain] [Domain] for Defendent [Axis] Biamp Biamp [Member] Biamp [Member] Other Defendents Other Defendents [Member] Other Defendents [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Other Litigation Other Litigation [Member] Other Litigation [Member] Gain Contingencies Gain Contingencies [Line Items] Gain contingency, number of defendents Gain Contingency, Number of Defendents Gain Contingency, Number of Defendents Gain contingency, unrecorded amount Gain Contingency, Unrecorded Amount Gain (loss) related to litigation settlement Gain (Loss) Related to Litigation Settlement Loss contingency, estimate of possible loss Loss Contingency, Estimate of Possible Loss Leases and Deferred Rent Leases of Lessee Disclosure [Text Block] Marketable Investment Securities Unrealized Gains and Losses [Abstract] Marketable Investment Securities Unrealized Gains and Losses [Abstract] Schedule of Gain (Loss) on Investments [Table] Schedule of Gain (Loss) on Investments [Table] Debt Security [Axis] Debt Security [Axis] Major Types of Debt Securities [Domain] Major Types of Debt Securities [Domain] Gain (Loss) on Investments [Line Items] Gain (Loss) on Investments [Line Items] Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Securities, Debt Securities Available-for-sale Securities, Debt Securities Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance - beginning of year Unrecognized Tax Benefits Additions based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions for tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Settlements Unrecognized Tax Benefits, Resulting from Settlements with Taxing Authorities, Net Unrecognized Tax Benefits, Resulting from Settlements with Taxing Authorities, Net Lapse in statutes of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Uncertain tax positions, ending balance Business Combinations, Goodwill and Intangibles Business Combinations, Goodwill and Intangibles Disclosure [Text Block] Business Combinations, Goodwill and Intangibles Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Common Stock Common Stock [Member] Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) [Member] Retained Earnings Retained Earnings [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock outstanding, beginning (in shares) Balance at the beginning of the period Exercise of stock options (in shares) Exercise of stock options (in values) Stock Repurchased (in shares) Stock Repurchased During Period, Shares Stock Repurchased (in dollars) Stock Repurchased During Period, Value Dividends, Cash Dividends, Cash Stock Issued During Period, Shares, Acquisitions Stock Issued During Period, Shares, Acquisitions Issuance of common stock in connection with acquisition of Sabine Stock Issued During Period, Value, Acquisitions Employee Stock Purchase Plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Employee Stock Purchase Plan Stock Issued During Period, Value, Employee Stock Purchase Plan Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Common stock outstanding, ending (in shares) Balance at end of the period Business Combination, Acquisition Related Costs [Abstract] Business Combination, Acquisition Related Costs [Abstract] Business Combination, Acquisition Related Costs Business Combination, Acquisition Related Costs - Foreign currency adjustments [Abstract] - Foreign currency adjustments [Abstract] Schedule of Intercompany Foreign Currency Balance [Table] Schedule of Intercompany Foreign Currency Balance [Table] Intercompany Foreign Currency Balance by Description [Axis] Intercompany Foreign Currency Balance by Description [Axis] Intercompany Foreign Currency Balance, Name [Domain] Intercompany Foreign Currency Balance, Name [Domain] Intercompany Foreign Currency Balance [Line Items] Intercompany Foreign Currency Balance [Line Items] Accumulated Other Comprehensive Income (Loss), Net of Tax Geographic Sales Information Segment Reporting Disclosure [Text Block] Stock Options Employee Stock Option [Member] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Risk-free interest rate, average Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected option life, average Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected price volatility, average Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Inventories Inventory Disclosure [Text Block] Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Contingencies [Table] Schedule of Contingencies [Table] Schedule of Contingencies [Table] Recorded Unconditional 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Activities [Abstract] Net proceeds from equity-based compensation programs Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Tax benefits from equity-based compensation programs Excess Tax Benefit from Share-based Compensation, Financing Activities Stock registration costs Payments of Stock Issuance Costs Dividend payments Payments of Dividends Payments for stock repurchases Payments for Repurchase of Common Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and 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 the beginning of the year Cash and cash equivalents at the end of the year Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes Income Taxes Paid Revenue Net income Allowance for Doubtful Accounts Receivable [Roll Forward] Allowance for Doubtful Accounts Receivable [Roll Forward] Balance at beginning of the year Allowance for Doubtful Accounts Receivable Allowance increase (decrease) Allowance for Doubtful Accounts Receivable, Period Increase (Decrease) Write offs, net of recoveries Allowance for Doubtful Accounts Receivable, Write-offs Balance at end of the year Loss Contingencies [Table] Loss Contingencies [Table] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Flood [Member] Flood [Member] Counterclaims [Member] Counterclaims [Member] Counterclaims [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Officer, Flood Officer, Flood [Member] Officer, Flood [Member] Officer, Strohm Officer, Strohm [Member] Officer, Strohm [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] Criminal Criminal [Member] Criminal [Member] Materially Misstated Financial Statements Materially Misstated Financial Statements [Member] Materially Misstated Financial Statements [Member] Loss Contingencies Loss Contingencies [Line Items] Number of officers Loss Contingency, Number of Defendants Loss contingency, number of convicted counts Loss Contingency, Number of Convicted Counts Loss Contingency, Number of Convicted Counts Prison sentence, years Prison Sentence, Years Prison Sentence, Years Probation, in years Probation, Years Probation, Years Probation sentence, in hours Probation Sentence, Hours Probation Sentence, Hours Loss contingency, legal fees incurred Loss Contingency, Legal Fees Incurred Loss Contingency, Legal Fees Incurred Loss contingency, legal fees, paid in escrow Losst Contingency, Legal Fees, Paid in Escrow Loss Contingency, Legal Fees, Paid in Escrow Loss contingency, damages paid, value Loss Contingency, Damages Paid, Value Loss contingency, legal fees, refunded from escrow Loss Contingency, Legal Fees, Refunded from Escrow Loss Contingency, Legal Fees, Refunded from Escrow Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Business Combinations, Consideration Transferred, Equity Issued or Issuable [Abstract] Business Combinations, Consideration Transferred, Equity Issued or Issuable [Abstract] Acquisition Consideration Type [Axis] Acquisition Consideration Type [Axis] Acquisition Consideration Type [Axis] - Defined types of consideration paid for business acquisitions Acquisition Consideration Type [Domain] Acquisition Consideration Type [Domain] [Domain] for Acquisition Consideration Type [Axis] - Defined types of consideration paid for business acquisitions Business Combination, Consideration 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