Entity Central Index Key Document and entity information. Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] CURRENT ASSETS: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net of allowance of $70 and $263, respectively Accounts Receivable Net Current Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current PROPERTY AND EQUIPMENT, net Property Plant And Equipment Net GOODWILL Goodwill INTANGIBLE ASSETS, net Finite Lived Intangible Assets Net OTHER LONG-TERM ASSETS Other Assets Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] CURRENT LIABILITIES: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses and other current liabilities Accrued Liabilities And Other Liabilities Current portion of deferred revenue Deferred Revenue Current Current portion of capital lease obligations Capital Lease Obligations Current Total current liabilities Liabilities Current LONG-TERM PORTION OF CAPITAL LEASE OBLIGATIONS Capital Lease Obligations Noncurrent DEFERRED REVENUE Deferred Revenue Noncurrent LONG-TERM DEBT Long Term Debt Noncurrent OTHER LONG-TERM LIABILITIES Other Liabilities Noncurrent Total liabilities Liabilities COMMITMENTS AND CONTINGENCIES (Note 8) Commitments And Contingencies STOCKHOLDERS’ EQUITY: Stockholders Equity [Abstract] Preferred stock – par value $0.01 per share; authorized 10,000,000 shares; none issued Preferred Stock Value Common stock – par value $0.01 per share; authorized 100,000,000 shares; 39,451,256 shares issued and 38,635,883 shares outstanding at September 30, 2017 and 31,626,635 shares issued and 30,881,148 shares outstanding at December 31, 2016 Common Stock Value Treasury stock – at cost, 815,373 shares at September 30, 2017 and 745,487 shares at December 31, 2016 Treasury Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Current 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 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 Common stock, shares outstanding Common Stock Shares Outstanding Treasury stock, shares Treasury Stock Shares Income Statement [Abstract] REVENUE Revenues COSTS AND OPERATING EXPENSES: Operating Costs And Expenses [Abstract] Cost of revenue (exclusive of depreciation and amortization shown separately below) Cost Of Revenue Technology and development (exclusive of depreciation and amortization shown separately below) Research And Development Expense Sales and marketing Selling And Marketing Expense General and administrative (exclusive of depreciation and amortization shown separately below) General And Administrative Expense Depreciation and amortization Depreciation And Amortization Total costs and operating expenses Costs And Expenses LOSS FROM OPERATIONS Operating Income Loss GAIN ON SALE OF INVESTMENT Gain On Sale Of Investments OTHER INCOME (EXPENSE) Other Nonoperating Income Expense INTEREST EXPENSE Interest Expense INCOME (LOSS) BEFORE INCOME TAXES Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments INCOME TAX PROVISION Income Tax Expense Benefit NET INCOME (LOSS) Net Income Loss NET INCOME (LOSS) PER SHARE: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted WEIGHTED AVERAGE SHARES USED TO COMPUTE NET INCOME (LOSS) PER SHARE: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net income (loss) Other comprehensive income: Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent [Abstract] Changes in foreign currency translation adjustment Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent Comprehensive income (loss) Comprehensive Income Net Of Tax Treasury stock shares received to satisfy minimum withholding liabilities. Payments made for deferred acquisitions. Non-cash proceeds from sale of long term investment. Minimum capital lease payments in accounts payable. Accrued property and equipment expenditures. Statement Of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] Net loss Adjustments to reconcile net loss to net cash (used in) provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Capitalized software impairment Capitalized Computer Software Impairments1 Stock-based compensation expense Share Based Compensation Gain on sale of long-term investment Gain Loss On Sale Of Investments Provision for deferred income taxes Deferred Income Tax Expense Benefit Increase in estimated value of contingent consideration Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 Changes in operating assets and liabilities, net of effect of acquisition: Increase Decrease In Other Operating Assets And Liabilities Net [Abstract] Accounts receivable, net Increase Decrease In Accounts Receivable Prepaid expenses and other assets Increase Decrease In Prepaid Deferred Expense And Other Assets Accounts payable Increase Decrease In Accounts Payable Accrued expenses and other liabilities Increase Decrease In Other Accounts Payable And Accrued Liabilities Deferred revenue Increase Decrease In Deferred Revenue Net cash (used in) provided by operating activities Net Cash Provided By Used In Operating Activities Continuing Operations CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Proceeds from the sale of investment Proceeds From Sale Maturity And Collections Of Investments Purchases of property and equipment Payments To Acquire Property Plant And Equipment Acquisition Payments To Acquire Businesses Net Of Cash Acquired Net cash used in investing activities Net Cash Provided By Used In Investing Activities Continuing Operations CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Proceeds from offering of common stock, net of underwriting costs Proceeds From Issuance Of Common Stock Payments of public offering issuance costs Payments Of Stock Issuance Costs Repayments of long-term debt Repayments Of Long Term Debt Repayments on capital lease obligations Repayments Of Long Term Capital Lease Obligations Proceeds from exercise of common stock options Proceeds From Stock Options Exercised Treasury stock shares received to satisfy minimum withholding liabilities Treasury Stock Shares Received To Satisfy Minimum Withholding Liabilities Deferred acquisition payments Payments For Deferred Acquisitions Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Cash paid for income taxes Income Taxes Paid SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING TRANSACTIONS: Noncash Investing And Financing Items [Abstract] Non-cash proceeds from sale investment Noncash Proceeds From Sale Of Long Term Investment Liability for estimated additional acquisition consideration Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 Property, equipment and service center contracts financed under capital lease Capital Lease Obligations Incurred Minimum capital lease payments in accounts payable Minimum Capital Lease Payments In Accounts Payable Accrued property and equipment expenditures Accrued Property And Equipment Expenditures Stock-based compensation capitalized to property and equipment Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount Organization Consolidation And Presentation Of Financial Statements [Abstract] The Company and Summary of Significant Accounting Principles Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Text Block] Stock offering. Equity [Abstract] Stock Offering Stock Offering [Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Other Intangible Assets Goodwill And Intangible Assets Disclosure [Text Block] Property Plant And Equipment [Abstract] Property and Equipment - Net Property Plant And Equipment Disclosure [Text Block] Payables And Accruals [Abstract] Accrued Expenses and Other Current Liabilities Accounts Payable Accrued Liabilities And Other Liabilities Disclosure Current [Text Block] Segment Reporting [Abstract] Information About Segment and Geographic Areas Segment Reporting Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock-based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Net Income (Loss) Per Common Share Data Earnings Per Share [Text Block] Investments All Other Investments [Abstract] Sale of Investment Cost Method Investments Description [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Accounting Estimates Use Of Estimates Concentrations of Risk Concentration Risk Credit Risk Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Schedule of Concentrations Equal to or Exceeding 10% of Company's Accounts Receivable, Revenue, and Cost of Revenue Schedules Of Concentration Of Risk By Risk Factor [Text Block] Schedule of Change in Goodwill Schedule Of Goodwill [Text Block] Schedule of Intangible Assets Schedule Of Finite Lived Intangible Assets Table [Text Block] Schedule of Property and Equipment Property Plant And Equipment [Text Block] Schedule of Accrued Expenses and Other Current Liabilities Schedule Of Accounts Payable And Accrued Liabilities Table [Text Block] Schedule of Revenue and Long Lived Tangible Assets by Geographic Area Schedule Of Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries By Country [Text Block] Schedule of Contract Commitments Contractual Obligation Fiscal Year Maturity Schedule Table [Text Block] Schedule of Capital Lease Commitments Schedule Of Future Minimum Lease Payments For Capital Leases Table [Text Block] Schedule of Total Stock Based Compensation Expense Schedule Of Share Based Compensation Activity Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of RSU Activity Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] Schedule of Basic and Diluted Net Income (Loss) Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule of Securities Excluded from Calculation of Diluted Net Income (Loss) Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Accounts Receivable [Member] Accounts Receivable [Member] Revenue [Member] Revenue Rights Granted [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration risk, percentage Concentration Risk Percentage1 Concentration Risks Types No Concentration Percentage [Abstract] Customer Major Customers [Axis] Customer Name Of Major Customer [Domain] Google search. Google Search [Member] Google Search [Member] Advertising Customer [Member] Advertising Customer [Member] Advertising Customer [Member] Google advertising affiliate. Google Advertising Affiliate [Member] Google Advertising Affiliate [Member] Cost of Revenue [Member] Cost Of Goods Total [Member] Platform customer. Customer A [Member] Platform Customer [Member] Platform customer B. Customer B [Member] Platform Customer B [Member] Platform customer C. Customer C [Member] Platform Customer C [Member] Increase decrease deferred tax assets. Increase (decrease) deferred tax assets Increase Decrease Deferred Tax Assets Other offering expenses. Underwriting Discounts and Commissions. Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Underwritten public offering. Underwritten Public Offering [Member] Underwritten Public Offering [Member] Class Of Stock [Line Items] Class Of Stock [Line Items] Common stock shares issued Stock Issued During Period Shares New Issues Common stock, price per share Shares Issued Price Per Share Net proceeds from issuance of common stock, after deduction of underwriting discounts and other offering expenses Underwriting discounts and commissions Underwriting Discounts And Commissions Other offering expenses Other Offering Expenses Business acquisition number of shares hold back. Business acquisition shares hold back value assigned. Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Warrants [Member] Warrant [Member] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] TZ Holdings. TZ Holdings, Inc [Member] T Z Holdings [Member] Technorati [Member] Technorati [Member] Technorati [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Cash consideration Payments To Acquire Businesses Gross Business acquisition equity Interest Issued, number of Shares Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued Business acquisition equity Interest Issued, value Business Acquisition Equity Interest Issued Or Issuable Value Assigned Number of shares held back Business Acquisition Number Of Shares Hold Back Business acquisition hold back, value Business Acquisition Shares Hold Back Value Assigned Held back warrants expiration date Investment Warrants Expiration Date Business acquisition contingent consideration paid. Maximum contingent cash consideration Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High Contingent consideration at fair value Contingent Consideration Classified As Equity Fair Value Disclosure Contingent consideration paid Business Acquisition Contingent Consideration Paid Cash withheld to secure indemnification obligations Business Combination Indemnification Assets Amount As Of Acquisition Date Approximately owed, post closing working capital adjustments Business Combination Separately Recognized Transactions Liabilities Recognized Balance – beginning of period Acquisition of Technorati Goodwill Acquired During Period Effect of foreign currency translation Goodwill Foreign Currency Translation Gain Loss Balance – end of period Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Customer and publisher relationships. Customer and Publisher Relationships [Member] Customer And Publisher Relationships [Member] Technology [Member] Developed Technology Rights [Member] Trademark [Member] Trademarks [Member] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Total gross amortizable intangible assets Finite Lived Intangible Assets Gross Less accumulated amortization Finite Lived Intangible Assets Accumulated Amortization Intangible assets, net Intangible Liability Disclosure [Abstract] Intangible Liability Disclosure [Abstract] Amortization of intangible assets Amortization Of Intangible Assets Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment, Type Property Plant And Equipment By Type [Axis] Property, Plant and Equipment, Type Property Plant And Equipment Type [Domain] Computer Equipment [Member] Computer Equipment [Member] Computer Software [Member] Software And Software Development Costs [Member] Furniture and Fixtures [Member] Furniture And Fixtures [Member] Leasehold Improvements [Member] Leaseholds And Leasehold Improvements [Member] Work in Process [Member] Construction In Progress [Member] Other [Member] Other Capitalized Property Plant And Equipment [Member] Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Property and equipment gross Property Plant And Equipment Gross Less accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net Computer Equipment and Software Held Under Capital Leases [Member] Assets Held Under Capital Leases [Member] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Capital Lease Obligations [Member] Capital Lease Obligations [Member] Accumulated depreciation of equipment under capital leases Depreciation expense Depreciation Accrued content fees. Accrued business acquisition consideration. Accounts Payable And Accrued Liabilities Current [Abstract] Accrued compensation Accrued Bonuses Current Accrued content fees Accrued Content Fees Accrued business acquisition consideration Accrued Business Acquisition Consideration Other Other Accrued Liabilities Current Total Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] United States [Member] UNITED STATES International Countries [Member] International [Member] International Countries [Member] Canada [Member] CANADA Other International Countries [Member] Other International [Member] Other International Countries [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues From External Customers And Long Lived Assets [Line Items] Revenue Long-lived tangible assets Contractual Obligation, Fiscal Year Maturity [Abstract] Contractual Obligation Fiscal Year Maturity [Abstract] 2017 (remaining - three months) Contractual Obligation Future Minimum Payments Due Remainder Of Fiscal Year 2018 Contractual Obligation Due In Second Year 2019 Contractual Obligation Due In Third Year 2020 Contractual Obligation Due In Fourth Year Total Contractual Obligation Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] Capital Leases Future Minimum Payments Due [Abstract] 2017 (three months remaining) Capital Leases Future Minimum Payments Remainder Of Fiscal Year 2018 Capital Leases Future Minimum Payments Due In Two Years 2019 Capital Leases Future Minimum Payments Due In Three Years 2020 Capital Leases Future Minimum Payments Due In Four Years Total minimum capital lease commitments Capital Leases Future Minimum Payments Due Less-amount representing interest Capital Leases Future Minimum Payments Interest Included In Payments Total capital lease obligations Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Less-current portion of capital lease obligations Long-term portion of capital lease obligations Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Technology and Development [Member] Research And Development Expense [Member] Sales and Marketing [Member] Selling And Marketing Expense [Member] General and Administrative [Member] General And Administrative Expense [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total stock-based compensation expense Allocated Share Based Compensation Expense Outstanding number of shares beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of shares granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Number of shares exercised Stock Issued During Period Shares Stock Options Exercised Number of shares forfeited or expired Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Outstanding number of shares ending balance Outstanding number of shares vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Outstanding number of shares vested and exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number Outstanding, weighted average exercise price, beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted average exercise price, granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted average exercise price, exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted average exercise price, forfeited or expired Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Outstanding, weighted average exercise price, ending balance Vested and expected to vest, weighted average exercise price, ending balance Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Vested and exercisable, weighted average exercise price, ending balance Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price Weighted average remaining contractual term (in years), outstanding Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted average remaining contractual term (in years), vested and expected to vest Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Weighted average remaining contractual term (in years), vested and exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Aggregate intrinsic value, outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate intrinsic value, vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Aggregate intrinsic value, vested and exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Closing stock price as reported on the Nasdaq Global Market Share Price Weighted average fair value of options issued Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Total intrinsic value of options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Unrecognized compensation cost related to non-vested options granted after adjustment for estimated forfeitures Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Expected weighted average period to recognize total unrecognized compensation cost Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Total fair value of shares vested Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 Share based compensation arrangement by share based payment award equity instruments other than options nonvested expected to vest. Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted Stock Units ("RSUs") [Member] Restricted Stock Units R S U [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Unvested-Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Unvested-Ending Balance Unvested expected to vest—September 30, 2017 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Expected To Vest Share based compensation arrangement by share based payment award equity instruments other than options nonvested expected to vest weighted average grant date fair value. Unvested-Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Unvested-Ending Balance Unvested expected to vest—September 30, 2017 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Expected To Vest Weighted Average Grant Date Fair Value Basic net income (loss) per share: Earnings Per Share Basic [Abstract] Numerator: Net Income Loss Available To Common Stockholders Basic [Abstract] Denominator: Weighted Average Number Of Shares Outstanding Basic [Abstract] Weighted average common shares outstanding Basic net income (loss) per share Diluted net income (loss) per share: Earnings Per Share Diluted [Abstract] Numerator: Net Income Loss Available To Common Stockholders Diluted [Abstract] Denominator: Weighted average common shares outstanding - basic Add - potentially dilutive securities (options, RSUs and warrants) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average common shares outstanding - diluted Diluted net income (loss) per share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Stock options and RSUs. Stock Options and Restricted Stock Units [Member] Stock Options And R S Us [Member] Warrants [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Anti-dilutive equity awards Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Schedule Of Cost Method Investments [Table] Schedule Of Cost Method Investments [Table] Investment, Name Schedule Of Equity Method Investment Equity Method Investee Name [Axis] Investment, Name Equity Method Investee Name [Domain] Blazer and Flip Flops Inc. B&FF [Member] Blazer And Flip Flops Inc [Member] accesso Technology Group, plc. accesso Technology Group, plc [Member] Accesso Technology Group Plc [Member] Sale of Investment [Line Items] Schedule Of Cost Method Investments [Line Items] Strategic investment Cost Method Investments Original Cost Equity interests received on sale of investments Sale of cost method investment, contingent consideration of cash and stock receivable. Sale of cost method investment, contingent consideration receivable Indemnification expiration period. Cash consideration from sale of investment Stock received on sale of investment Equity Interests Received On Sale Of Investments Contingent consideration receivable in cash and stock Sale Of Cost Method Investment Contingent Consideration Of Cash And Stock Receivable Assigned value of contingent consideration receivable Sale Of Cost Method Investment Contingent Consideration Receivable Indemnification expiry period Indemnification Expiry Period Gain on sale of investments