Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable, Current Accounts payable Accounts Receivable, Net, Current Accounts receivable, net of allowance for doubtful accounts of $863 and $303 at December 31, 2016 and 2015, respectively Accrued Liabilities, Current Accrued liabilities Accrued Royalties, Current Accrued royalties Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation and amortization Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Member] Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Estimated useful lives Additional Cash and Cash Equivalent Related Text Maturity of unrestricted cash equivalent Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Tax benefits from equity awards 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: Advance royalty amortization period. Advance Royalty Amortization Period Royalty payments amortization period Advertising Costs, Policy [Policy Text Block] Advertising Advertising Expense Advertising expense Allocated Share-based Compensation Expense Total stock based compensation expense Share based compensation expense Stock based compensation expense Allowance for Credit Losses on Financing Receivables [Table Text Block] Changes in the Allowance for Doubtful Accounts and the Amounts Charged to Bad Debt Expense Allowance for Doubtful Accounts Receivable, Current Allowance Balance at End of Period Allowance Balance at Beginning of Period Allowance for doubtful accounts, net Allowance for Doubtful Accounts Receivable, Write-offs Write-offs Amendment Flag Amendment Flag Amortization of Intangible Assets Amortization of intangible assets Amortized Cost and Fair Value Debt Securities [Abstract] Amortized Cost and Fair Value Debt Securities [Abstract] Amortized Cost and Fair Value Debt Securities [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total number of common equivalent shares excluded from the calculations of diluted earnings per share Assets Total assets Total assets Assets [Abstract] ASSETS Assets, Current Total current assets Assets, Current [Abstract] Current assets: Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Available for sale securities, Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Available for sale securities, Unrealized Losses Available-for-sale Securities, Amortized Cost Basis Available for sale securities, Adjusted Cost Available-for-sale Securities, Current Available for sale securities, Fair Value Marketable securities Award Type [Axis] Award Type [Axis] Base Rate [Member] Base Rate [Member] Basic Earnings Per Share, Pro Forma Basic earnings per share Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business Acquisition [Axis] Potential consideration for achievement of certain financial targets and business outcomes over the period under the acquisition terms. Business Acquisition, Contingent Payment Period Contingent upon achievement of certain financial targets and business outcome, term Business Acquisition, Date of Acquisition Agreement Acquisition date of assets Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Consideration paid for acquisition in shares Business Acquisition [Line Items] Business Acquisition [Line Items] Business Acquisition, Pro Forma Information [Table Text Block] Summary of Unaudited ProForma Financial Information Business Acquisition, Pro Forma Net Income (Loss) Net income Business Acquisition, Pro Forma Revenue Total revenues Business and basis of presentation. Business And Basis Of Presentation [Line Items] Business And Basis Of Presentation [Line Items] Business And Basis Of Presentation [Table] Business And Basis Of Presentation [Table] Business And Basis Of Presentation [Table] Business Combination, Acquisition Related Costs Transaction costs associated with the acquisition Business combination contingent consideration arrangements milestone payment. Business Combination Contingent Consideration Arrangements Milestone Payment Payments related to achievement of certain performance milestones Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Additional contingent consideration Business Combination, Contingent Consideration, Liability Accrual for contingent consideration Business Combination Disclosure [Text Block] Business Combinations Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract] Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract] Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract] Business Combination, Indemnification Assets, Amount as of Acquisition Date Estimated indemnification asset Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Operating loss Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Total revenues Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Purchase price allocation for net tangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability Contingent liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Prepaid assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Accounts receivable, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Accounts payable and accrued liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Net tangible assets include deferred revenue estimated fair value Deferred revenue Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets, Current Deferred tax assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent Purchase price allocation for deferred tax assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Total intangible assets subject to amortization Intangible assets Purchase price allocation for identifiable intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Purchase price allocation for liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Property and equipment Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Net assets acquired Business Combinations [Abstract] Business Combinations [Abstract] Business Combination, Separately Recognized Transactions, Net Gains and Losses Recorded gain after business combination Capitalized Computer Software, Accumulated Amortization Accumulated amortization on capitalized software development Capitalized Computer Software, Amortization Amortization of capitalized software development Capitalized Computer Software, Net Capitalized software development, net of accumulated amortization of $31,787 and $24,130 at December 31, 2016 and 2015, respectively Capitalized software development amortization period. Capitalized Software Development Amortization Period Assets amortized cost Capitalized Software Development Costs for Software Sold to Customers Capitalized software development costs for computer software developed for resale Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of year Cash and cash equivalents at beginning of year Cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Cash Equivalents Certificates of Deposit [Member] Certificates of Deposit [Member] Chief Executive Officer [Member] Chief Executive Officer [Member] Class of Stock [Line Items] Class of Stock [Line Items] Collaborative Arrangement Disclosure [Text Block] Collaborative Arrangement Collaborative arrangement profit share percentage. Collaborative Arrangement Profit Share Percentage Collaborative arrangement profit/loss sharing percentage Commitment, Contingency And Related Party Transactions [Abstract] Commitment, Contingency And Related Party Transactions [Abstract] Commitment, Contingency And Related Party Transactions [Abstract] Commitments and Contingencies Commitments and contingencies Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Litigation Common Stock, Capital Shares Reserved for Future Issuance Unissued common stock reserved for future stock option grants Common Stock Including Additional Paid in Capital [Member] Common Stock [Member] Common Stock, No Par Value Common stock, no par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Ending balance, shares Beginning balance, shares Common stock, shares outstanding Common Stocks, Including Additional Paid in Capital Common stock, no par value, 75,000 shares authorized; 31,748 and 31,647 shares issued and outstanding at December 31, 2016 and 2015, respectively Common stock unissued shares. Common Stock Unissued Shares Common stock unissued shares treated as expense Compensation and Retirement Disclosure [Abstract] Compensation and Retirement Disclosure [Abstract] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentrations of Credit Risk and Significant Customers Concentration Risk, Customer Concentration risk, customer Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Consolidation, Policy [Policy Text Block] Principles of Consolidation Contracts Revenue Collaborative arrangement revenues Corporate Debt Securities [Member] Corporate Debt Securities [Member] Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization Cost of revenues (excluding depreciation and amortization) Cost of Sales [Member] Cost of Revenues (Excluding Depreciation and Amortization) [Member] Costs and Expenses Total operating costs and expenses Costs and Expenses [Abstract] Operating costs and expenses: Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Current Federal Tax Expense (Benefit) Current federal Current Fiscal Year End Date Current Fiscal Year End Date Current State and Local Tax Expense (Benefit) Current state Customer Relationships [Member] Customer Relationships [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Text Block] Debt Long-term Debt, Gross Debt outstanding Debt Instrument, Periodic Payment, Principal Principal payments prior to maturity Decrease in Unrecognized Tax Benefits is Reasonably Possible Decrease in unrecognized tax benefits Deferred Charges, Policy [Policy Text Block] Prepaid Royalties Deferred Federal Income Tax Expense (Benefit) Deferred federal Deferred Income Tax Expense (Benefit) Deferred income taxes Deferred Tax Liabilities, Gross Total deferred tax liabilities Deferred Revenue, Current Deferred revenue Deferred Revenue, Noncurrent Deferred revenue, noncurrent Deferred State and Local Income Tax Expense (Benefit) Deferred state Deferred Tax Assets, Deferred Income Deferred revenue Deferred Tax Assets, Equity Method Investments Basis difference on investments Deferred Tax Assets, Gross Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred tax assets, net of valuation allowance Deferred Tax Assets, Net [Abstract] Deferred tax assets: Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforwards Deferred Tax Assets, Property, Plant and Equipment Depreciation Deferred Tax Assets, Tax Credit Carryforwards Tax credits Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax Alternative minimum tax credit carryforward Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Stock based compensation Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Allowance for doubtful accounts Deferred Tax Assets, Valuation Allowance Valuation allowance Less: Valuation allowance Deferred Tax Liabilities, Net Net deferred tax liabilities Deferred Tax Liabilities, Deferred Expense, Capitalized Software Capitalized software development Deferred Tax Liabilities, Goodwill Deductible goodwill Deferred Tax Liabilities, Intangible Assets Nondeductible intangible assets Deferred Tax Liabilities, Net [Abstract] Deferred tax liabilities: Deferred Tax Liabilities, Net, Noncurrent Deferred tax liabilities Deferred Tax Liabilities, Prepaid Expenses Prepaid assets Defined Contribution Plan, Employer Discretionary Contribution Amount Defined contribution plan, employer matching contribution amount Denominator. Denominator [Abstract] Denominator: Depreciation Depreciation of property and equipment Depreciation, Depletion and Amortization Depreciation and amortization Developed Technology Rights [Member] Developed Technology [Member] Diluted Earnings Per Share Pro Forma Diluted earnings per share Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock Based Compensation Document and entity information. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Domestic Tax Authority [Member] Federal [Member] Earliest Tax Year [Member] Earliest Tax Year [Member] Earnings Per Share [Abstract] Net income per share: Earnings Per Share, Basic Basic Basic earnings per share Earnings Per Share, Diluted Diluted Diluted earnings per share Earnings Per Share, Policy [Policy Text Block] Earnings Per Share Earnings Per Share [Text Block] Earnings Per Share Employee-related Liabilities, Current Accrued compensation and related expenses Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Weighted average expense recognition period Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Total unrecognized compensation expense related to non-vested stock options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Excess tax benefits related to stock based awards Employees minimum age eligibility to participate in plan. Employees Minimum Age Eligibility To Participate In Plan Employees minimum age eligibility to participate in plan Employee Stock Option [Member] Stock Options [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Registrant Name Entity Registrant Name Entity Voluntary Filers Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Equipment [Member] Equipment [Member] Equity [Abstract] Equity [Abstract] Equity and Cost Method Investments, Policy [Policy Text Block] Non-Marketable Equity Investments Equity Component [Domain] Equity Component [Domain] Investment, Name [Domain] Investment, Name [Domain] Equity Method Investment, Ownership Percentage Equity method ownership interest percentage Equity Method Investments Fair value of minority equity interest Escrow [Member] Escrow [Member] Cash Held in Escrow [Member] Eurodollar [Member] Eurodollar [Member] Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefits from equity awards Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefits from equity awards Expenses related to collaborative arrangement. Expenses Related To Collaborative Arrangement Expenses related to collaborative arrangement Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Inputs, Level 2 [Member] Level 2 [Member] Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value of Financial Instruments, Policy [Policy Text Block] Financial Instruments