Income Tax Disclosure [Abstract]
Net operating loss carryforwards
Deferred Tax Assets, Operating Loss Carryforwards
Capital loss carryforwards
Deferred Tax Assets, Capital Loss Carryforwards
Tax credits
Deferred Tax Assets, Tax Credit Carryforwards
Allowance for doubtful accounts
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts
Accrued salaries and benefits
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits
Deferred revenues
Deferred Tax Assets, Deferred Income
Capital leases
Deferred Tax Assets Capital Leases
Deferred Tax Assets Capital Leases
Deferred compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits
Deferred rent
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent
Other
Deferred Tax Assets, Other
Gross deferred tax assets
Deferred Tax Assets, Gross
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Net deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Intangible assets
Deferred Tax Liabilities, Intangible Assets
Property and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Subpart F income recapture
Deferred Tax Liability, SubPart F Income Recapture
Deferred Tax Liability, SubPart F Income Recapture
Prepaid maintenance
Deferred Tax Liabilities, Prepaid Maintenance
Deferred tax liabilities, prepaid maintenance
Other
Deferred Tax Liabilities, Other
Total deferred tax liabilities
Deferred Tax Liabilities, Net
Net deferred tax asset
Deferred Tax Assets, Net
Segments, Geographical Areas [Abstract]
Schedule Of Geographical Information [Table]
Schedule Of Geographical Information [Table]
Schedule Of Geographical Information [Table]
Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Segment, Geographical [Domain]
United States [Member]
UNITED STATES
Europe [Member]
Europe [Member]
EuropeMember
Canada [Member]
CANADA
Other [Member]
Other Country [Member]
Other Country [Member]
Schedule Of Geographical Information [Line Items]
Schedule Of Geographical Information [Line Items]
Schedule Of Geographical Information [Line Items]
Total Revenues
Revenues
Property and equipment, net
Property, Plant and Equipment, Net
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Property, Plant and Equipment [Abstract]
Property and Equipment Under Capital Lease Obligation
Property, Plant and Equipment [Table Text Block]
Accounting Policies [Abstract]
Fair value measurments on a nonrecurring basis
Fair Value Measurements, Nonrecurring [Table Text Block]
Allowance for doubtful accounts
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Schedule of intangible assets with finite lives
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Reconciliation of basic and diluted net (loss) income per common share
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Payments under Noncancelable Lease Agreements
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Long-term Debt and Capital Lease Obligations [Abstract]
2014
Capital Leases, Future Minimum Payments Due, Next Twelve Months
2015
Capital Leases, Future Minimum Payments Due in Two Years
2016
Capital Leases, Future Minimum Payments Due in Three Years
2017
Capital Leases, Future Minimum Payments Due in Four Years
2018
Capital Leases, Future Minimum Payments Due in Five Years
Total minimum lease payments
Capital Leases, Future Minimum Payments Due
Less amount representing interest
Capital Leases, Future Minimum Payments, Interest Included in Payments
Present value of net minimum lease payments
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments
Less current portion
Capital Lease Obligations, Current
Capital lease obligations, long-term
Capital Lease Obligations, Noncurrent
Accrued Liabilities [Abstract]
Schedule of Accrued Expenses
Schedule of Accrued Liabilities [Table Text Block]
Schedule of Capitalization, Long-term Debt [Table]
Schedule of Capitalization, Long-term Debt [Table]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
[Domain] for Variable Rate [Axis]
Fed Funds Rate [Member]
Fed Funds Rate [Member]
Fed Funds Rate [Member]
Eurocurrency Rate [Member]
Eurocurrency Rate [Member]
Eurocurrency Rate [Member]
Applicable Rate [Member]
Applicable Rate [Member]
Applicable Rate [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Standby Letters of Credit [Member]
Standby Letters of Credit [Member]
Swing Line [Member]
Swing Line [Member]
Swing Line [Member]
Alternative Currency Lending [Member]
Alternative Currency Lending [Member]
Alternative Currency Lending [Member]
Base Rate and Swing Lines [Member]
Base Rate and Swing Lines [Member]
Base Rate and Swing Lines [Member]
Eurocurrency Rate Loan [Member]
Eurocurrency Rate Loan [Member]
Eurocurrency Rate Loan [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Line of Credit [Member]
Line of Credit [Member]
Lender Name [Axis]
Lender Name [Axis]
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Lender [Domain]
Bank of America [Member]
Bank of America [Member]
Bank of America [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Property, Plant and Equipment by Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Computer equipment [Member]
Computer Equipment [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Schedule of Capitalization, Long-term Debt [Line Items]
Capital lease obligations
Capital Lease Obligations
Utilization of capital lease
Utilization Of Capital Lease
Utilization Of Capital Lease
Asset acquired through issuance of capital leases
Asset Acquired Through Issuance Of Capital Leases
Asset acquired through issuance of capital leases.
Revolving credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Letters of credit outstanding
Letters of Credit Outstanding, Amount
Line of credit facility additional borrowings available
Line of Credit Facility, Increase, Additional Borrowings
Line of Credit Facility, Higher Borrowing Capacity Option
Line of Credit Facility, Higher Borrowing Capacity Option
Line of Credit Facility, Higher Borrowing Capacity Option
Line of Credit Facility, Maximum Borrowing Capacity Over Five Year Term
Line of Credit Facility, Maximum Borrowing Capacity Over Five Year Term
Line of Credit Facility, Maximum Borrowing Capacity Over Five Year Term
Debt Instrument, Basis Spread on Variable Rate
Debt Instrument, Basis Spread on Variable Rate
Line of Credit Facility, Commitment Fee Percentage
Line of Credit Facility, Commitment Fee Percentage
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Acquired Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Customer relationships [Member]
Customer Relationships [Member]
Trade names [Member]
Trade Names [Member]
Developed Technology [Member]
Developed Technology [Member]
Developed Technology [Member]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
ARS group [Member]
A.R.S Group [Member]
A.R.S Group [Member]
Adxpose Inc [Member]
Adxpose Inc [Member]
AdXpose Inc [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Transaction related costs
Business Acquisition, Cost of Acquired Entity, Transaction Costs
Acquisition resulted in goodwill
Business Acquisition, Purchase Price Allocation, Goodwill Amount
Total purchase price
Business Acquisition, Cost of Acquired Entity, Purchase Price
Finite-lived intangible assets
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets
Finite-lived intangible assets useful life (in years)
Finite-Lived Intangible Asset, Useful Life
Revenue related to acquiree
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Cash paid to acquired entity
Business Acquisition, Cost of Acquired Entity, Cash Paid
Number of shares issued as consideration
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares
Value of shares issued as consideration
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned
Accrued Expenses
Other Liabilities Disclosure [Text Block]
Schedule of Future Minimum Lease Payments for Capital Leases
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
Intangible Assets [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Acquired methodologies/technology [Member]
Acquired Methodologies Technology [Member]
Acquired Methodologies/Technology [Member]
Panel [Member]
Panel [Member]
Panel [Member]
Intellectual property [Member]
Developed Technology Rights [Member]
Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period
Acquired Finite-lived Intangible Asset, Weighted-Average Period before Renewal or Extension
Net loss
Net Income (Loss) Attributable to Parent
Net income per share - common stock: Basic (in dollars per share)
Earnings Per Share, Basic
Net income per share - common stock: Diluted (in dollars per share)
Earnings Per Share, Diluted
Weighted-average shares outstanding-common stock, basic
Weighted Average Number of Shares Outstanding, Basic
Options to purchase common stock
Incremental Common Shares Attributable to Share-based Payment Arrangements
Unvested restricted stock units
Incremental Common Shares Attributable to Unvested Restricted Stock Units
Incremental Common Shares Attributable to Unvested Restricted Stock Units
Warrants to purchase common stock
Incremental Common Shares Attributable to Call Options and Warrants
Weighted-average shares outstanding-common stock, diluted
Weighted Average Number of Shares Outstanding, Diluted
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Goodwill [Line Items]
Goodwill [Line Items]
Gross Carrying Amount
Finite-Lived Intangible Assets, Gross
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Net Carrying Amount
Finite-Lived Intangible Assets, Net
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plans
Compensation and Employee Benefit Plans [Text Block]
Current, Federal
Current Federal Tax Expense (Benefit)
Current, State
Current State and Local Tax Expense (Benefit)
Current, Foreign
Current Foreign Tax Expense (Benefit)
Current Total
Current Income Tax Expense (Benefit)
Deferred, Federal
Deferred Federal Income Tax Expense (Benefit)
Deferred, State
Deferred State and Local Income Tax Expense (Benefit)
Deferred, Foreign
Deferred Foreign Income Tax Expense (Benefit)
Deferred Total
Deferred Income Tax Expense (Benefit)
Income tax (benefit) provision
Income Tax Expense (Benefit)
Carrying Value of Goodwill
Schedule of Goodwill [Table Text Block]
Schedule of Acquired Intangible Assets
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
Weighted Average Remaining Amortization Period
Schedule Of Acquired Finite Lived Intangible Assets Weighted Average Remaining Useful Life Table [Text Block]
Schedule of Acquired Finite Lived Intangible Assets, Weighted Average Remaining Useful Life [Table Text Block].
Estimated Future Amortization of Acquired Intangible Assets
Schedule of Expected Amortization Expense [Table Text Block]
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table]
Quarterly Financial Information [Table]
Quarterly Financial Information [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain]
Cost of revenues [Member]
Cost of Sales [Member]
Selling and marketing [Member]
Selling and Marketing Expense [Member]
Research and development [Member]
Research and Development Expense [Member]
General and administrative [Member]
General and Administrative Expense [Member]
Quarterly Financial Information [Line Items]
Quarterly Financial Information [Line Items]
Quarterly Financial Information [Line Items]
Allocated Share-based Compensation Expense
Allocated Share-based Compensation Expense
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 allowances of $1,667 and $1,117, respectively
Accounts Receivable, Net, Current
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Current
Total current assets
Assets, Current
Other non-current assets
Other Assets, Noncurrent
Long-term deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Intangible assets, net
Goodwill
Goodwill
Total assets
Assets
Liabilities and Equity
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued expenses
Accrued Liabilities, Current
Deferred revenues
Deferred Revenue, Current
Deferred rent
Deferred Rent Credit, Current
Deferred tax liabilities
Deferred Tax Liabilities, Net, Current
Capital lease obligations
Total current liabilities
Liabilities, Current
Deferred rent, long-term
Deferred Rent Credit, Noncurrent
Deferred revenue, long-term
Deferred Revenue, Noncurrent
Deferred tax liabilities, long-term
Deferred Tax Liabilities, Net, Noncurrent
Other long-term liabilities
Other Liabilities, Noncurrent
Total liabilities
Liabilities
Commitments and contingencies
Commitments and Contingencies
Stockholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, $0.001 par value per share; 5,000,000 shares authorized at December 31, 2013 and December 31, 2012; no shares issued or outstanding at December 31, 2013 and December 31, 2012
Preferred Stock, Value, Issued
Common stock, $0.001 par value per share; 100,000,000 shares authorized at December 31, 2013 and December 31, 2012; 35,699,508 shares issued and 35,216,071 shares outstanding as of December 31, 2013 and 35,679,430 shares issued and outstanding at December 31, 2012, respectively
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital, Common Stock
Accumulated other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Treasury stock, at cost, 483,437 and 0 shares as of December 31, 2013 and December 31, 2012, respectively
Treasury Stock, Value
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Major Customers [Axis]
Major Customers [Axis]
Name of Major Customer [Domain]
Name of Major Customer [Domain]
Microsoft [Member]
Microsoft [Member]
Microsoft [Member]
Type of Arrangement and Non-arrangement Transactions [Axis]
Type of Arrangement and Non-arrangement Transactions [Axis]
Arrangements and Non-arrangement Transactions [Domain]
Arrangements and Non-arrangement Transactions [Domain]
Service Arrangements [Member]
Service Arranagements [Member]
Service Arranagements [Member]
Summary of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Impairment charges
Impairment of Long-Lived Assets to be Disposed of
Percentage of holdings for consolidation
Percentage Of Holdings For Consolidation
Percentage of holdings for consolidation.
Interest income on investments and excess cash balances nominal value
Interest Income On Investments And Excess Cash Balances Nominal Value
Interest income on investments and excess cash balances nominal value.
Property and equipment, estimated useful life, maximum (in years)
Property, Plant and Equipment, Useful Life
Impairment of intangible assets
Impairment of Intangible Assets, Finite-lived
Foreign Currency Transaction Gain (Loss), before Tax
Foreign Currency Transaction Gain (Loss), before Tax
Revenue recognition period
Revenue Recognition Period
Revenue Recognition Period
Revenue recognized under new revenue recognition guidance
Revenue Recognition, New Accounting Pronouncement, Material Effect, Revenue Recognized under Amended Guidance
Expense incurred under new revenue recognition guidance
Revenue Recognition New Accounting Pronouncement Material Effect Cost Of Revenue Under Amended Guidance
Revenue Recognition New Accounting Pronouncement Material Effect Cost Of Revenue Under Amended Guidance
Deferred revenue under the amended guidance
Revenue Recognition, New Accounting Pronouncement, Material Effect, Revenue Deferred under Amended Guidance
Deferred cost of revenue under the amended guidance
Revenue Recognition New Accounting Pronouncement Material Effect Cost Of Revenue Deferred Under Amended Guidance
Revenue Recognition New Accounting Pronouncement Material Effect Cost Of Revenue Deferred Under Amended Guidance
Revenue recognized in nonmonetary transactions
Nonmonetary Transaction, Gross Operating Revenue Recognized
Revenue recognized related party
Nonmonetary Transaction, Gross Operating Revenue Recognized, Related Party
Nonmonetary Transaction, Gross Operating Revenue Recognized, Related Party
Expense related to nonmonetary transactions
Nonmonetary Transaction, Amount of Barter Transaction
Percentage of revenue accounted for by customer
Percentage Of Revenue Accounted For Customer Out Of Total Revenue
Percentage Of Revenue Accounted For Customer Out Of Total Revenue.
Percentage of revenue accounted for account receivables
Maximum Percentage Of Revenue Accounted For Customer Out Of Accounts Receivables
Maximum percentage of revenue accounted for customer out of accounts receivables
Advertising expense
Advertising Expense
Dilutive effect of stock options and restricted shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Basis of Presentation and Consolidation
Basis Of Presentation And Consolidation Policy [Text Block]
Basis Of Presentation And Consolidation [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Cash and Cash Equivalents and Investments
Cash and Cash Equivalents, Policy [Policy Text Block]
Accounts Receivable
Trade and Other Accounts Receivable, Policy [Policy Text Block]
Property and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Business Combinations
Business Combinations 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]
Lease Accounting
Lease, Policy [Policy Text Block]
Foreign Currency
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Operating Segment Information
Segment Reporting, Policy [Policy Text Block]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Cost of Revenues
Cost of Sales, Policy [Policy Text Block]
Selling And Marketing
Selling And Marketing [Policy Text Block]
Selling And Marketing [Policy Text Block]
Research and Development
Research and Development Expense, Policy [Policy Text Block]
General and Administrative
Selling, General and Administrative Expenses, Policy [Policy Text Block]
Concentration of Credit Risk
Concentration Of Credit Risk [Policy Text Block]
Concentration Of Credit Risk [Policy Text Block]
Advertising Costs
Advertising Costs, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Recent Pronouncements
Recent Pronouncements Policy [Text Block]
Recent pronouncements.
Statement of Cash Flows [Abstract]
Operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net loss to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation
Depreciation
Amortization of intangible assets
Amortization of Intangible Assets
Provision for bad debts
Provision for Doubtful Accounts
Stock-based compensation
Share-based Compensation
Amortization of deferred rent
Amortization of Deferred Charges
Deferred tax (benefit) provision
Loss on asset disposal
Gain (Loss) on Disposition of Assets
Gain on sale of marketable securities
Marketable Securities, Realized Gain (Loss)
Settlement of litigation
Litigation Settlement, Expense
Changes in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Accounts payable, accrued expenses, and other liabilities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Deferred revenues
Increase (Decrease) in Deferred Revenue
Deferred rent
Straight Line Rent
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Investing activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from asset disposition
Proceeds from Sale of Productive Assets
Acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Sales and maturities of investments
Proceeds from Sale and Maturity of Available-for-sale Securities
Purchase of property and equipment
Payments to Acquire Property, Plant, and Equipment
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Financing activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from the exercise of common stock options
Proceeds from Stock Options Exercised
Repurchase of common stock (withholding taxes)
Payments for Repurchase of Common Stock
Repurchase of common stock (treasury shares)
Payments for Repurchase of Common Stock, Treasury Shares
Payments for Repurchase of Common Stock, Treasury Shares
Excess tax benefits from stock based compensation
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities
Principal payments on capital lease obligations
Repayments of Long-term Capital Lease Obligations
Proceeds from financing arrangements
Proceeds from Lines of Credit
Principal payments on financing arrangements
Repayments of Lines of Credit
Debt issuance costs
Payments of Debt Issuance Costs
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of exchange rate changes on cash
Effect of Exchange Rate on Cash and Cash Equivalents
Net increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year
Supplemental cash flow disclosures
Supplemental Cash Flow Information [Abstract]
Interest paid
Interest Paid
Net income tax paid
Income Taxes Paid, Net
Supplemental noncash investing and financing activities
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Capital lease obligations incurred
Capital Lease Obligations Incurred
Leasehold improvements acquired through lease incentives
Leasehold Improvements Acquired Through Lease Incentives
Leasehold Improvements Acquired Through Lease Incentives
Accrued capital expenditures
Capital Expenditures Incurred but Not yet Paid
Patents acquired through issuance of common stock
Noncash or Part Noncash Acquisition, Intangible Assets Acquired
Stock issued in connection with business combination
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued
Geographic Information
Segment Reporting Disclosure [Text Block]
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
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total minimum lease payments
Operating Leases, Future Minimum Payments Due
Asset Disposition Table [Abstract]
Asset Disposition Table [Abstract]
Asset Disposition
AssetDisposition [Table Text Block]
[Table Text Block] for AssetDisposition [Table]
Schedule of Quarterly Financial Information
Schedule of Quarterly Financial Information [Table Text Block]
Employer contributions
Defined Benefit Plan, Contributions by Employer
Equity [Abstract]
Schedule of cash paid for share repurchases
Schedule of Treasury Stock by Class [Table Text Block]
Asset Disposition [Abstract]
Asset Disposition [Abstract]
Percentage of discount rate
Discount Rate Percentage
Discount Rate Percentage
Percentage of royalty rate
Percentage Of Royalty Rate Of Net Sales
Percentage Of Royalty Rate Of Net Sales
Proceeds from Divestiture of Businesses
Proceeds from Divestiture of Businesses
Proceeds from Divestiture of Businesses
NetCashReceivedAtClosing
NetCashReceivedAtClosing
Proceeds Held In Escrow
ProceedsHeldInEscrow
ProceedsHeldInEscrow
ARS Intangible Asset
ARSIntangibleAsset
ARSIntangibleAsset
Total Asset Disposition Fair Value
TotalAssetDispositionFairValue
TotalAssetDispositionFairValue
Assets of Disposal Group, Including Discontinued Operation
Assets of Disposal Group, Including Discontinued Operation
Goodwill Allocated To ARS
GoodwillAllocatedToARS
GoodwillAllocatedToARS
FV Accelerated Equity Awards
FVAcceleratedEquityAwards
FVAcceleratedEquityAwards
Gain on disposition
Gain (Loss) on Sale of Business
Stockholders' Equity Note [Abstract]
Stockholders' Equity
Stockholders' Equity Note Disclosure [Text Block]
Document Documentand Entity Information [Abstract]
Document Documentand Entity Information [Abstract]
Document Information [Table]
Document Information [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Entity Information [Line Items]
Entity Information [Line Items]
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
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
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Public Float
Entity Public Float
Entity Current Reporting Status
Entity Current Reporting Status
Entity Voluntary Filers
Entity Voluntary Filers
Asset Disposition
AssetDisposition [Text Block]
AssetDisposition [Text Block]
Income Taxes
Income Tax Disclosure [Text Block]
Long-term Debt and Other Financing Arrangement
Long-term Debt [Text Block]
Payroll and related
Accrued Payroll Taxes
Cost of revenues
Accrued Cost Of Revenues Current And Noncurrent
Accrued cost of revenues current and noncurrent
Stock-based compensation
Accrued Employee Benefits
Other
Other Accrued Liabilities
Income, sales and other taxes
Taxes Payable
Professional fees
Accrued Professional Fees
Total accrued expenses
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
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Goodwill allocated to ARS disposition
Estimated fair value of intangible assets
Finite-lived Intangible Assets, Fair Value Disclosure
Income from continuing operations and net income
Increase Decrease In Income From Continuing Operations
Increase Decrease In Income From Continuing Operations
Impact on earnings per share (in dollars per share)
Decrease In Basic Earnings Per Share
Decrease in Basic Earnings Per Share
Estimated useful life, intangible assets (in months)
Finite Lived Intangible Assets Remaining Useful Life
Finite Lived Intangible Assets Remaining Useful Life
Amortization of intangible assets
Amount allocated to acquired patents
Acquired Finite-lived Intangible Asset, Amount
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Stockholders' Deficit [Member]
Accumulated Deficit during Development Stage [Member]
Treasury Stock [Member]
Treasury Stock [Member]
Statement [Line Items]
Statement [Line Items]
Balance, shares
Shares, Issued
Balance
Foreign currency translation adjustment
Other Comprehensive Income Foreign Currency Translation Adjustment Net Of Tax Including Noncontrolling Interest Period Increase Decrease
Other Comprehensive Income Foreign Currency Translation Adjustment Net Of Tax Including Noncontrolling Interest Period Increase Decrease
Unrealized loss on marketable securities
Unrealized Gain On Marketable Securities And Forward Contracts
Unrealized Gain On Marketable Securities And Forward Contracts
Common stock issued in conjunction with acquisitions, shares
Stock Issued During Period, Shares, Acquisitions
Common stock issued in conjunction with acquisitions
Stock Issued During Period, Value, Acquisitions
Common stock issued in conjunction with litigation settlement, shares
Stock Issued During Period, Shares, Litigation Settlement
Stock Issued During Period, Shares, Litigation Settlement
Common stock issued in conjuction with litigation settlement
Stock Issued During Period, Value, Litigation Settlement
Stock Issued During Period, Value, Litigation Settlement
Exercise of common stock options (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Exercise of common stock options
Stock Issued During Period, Value, Stock Options Exercised
Exercise of common stock warrants, shares
Stock Issued During Period Shares Stock Warrants Exercised
Stock Issued During Period Shares Stock Warrants Exercised
Issuance of restricted stock, shares
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Issuance of restricted stock
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures
Restricted stock cancelled, shares
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited
Restricted stock units vested, shares
Stock Issued During Period Shares Restricted Stock Units Vested
Stock Issued During Period Shares Restricted Stock Units Vested
Common stock received for tax withholding, shares
Common Stock Shares Received For Tax Withholding
Common stock, shares received for tax withholding.
Common stock received for tax withholding
Common Stock Value Received For Tax Withholding
Common stock, value received for tax withholding.
Repurchase of common stock (in shares)
Stock Repurchased During Period, Shares
Repurchase of common stock
Stock Repurchased During Period, Value
Excess tax benefits from stock based compensation, net
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Amortization of stock based compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Balance, shares
Balance
Unrecognized tax benefits beginning balance
Unrecognized Tax Benefits
Increase related to tax positions of prior years
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions
Increase related to acquired tax positions recorded through purchase accounting
Unrecognized Tax Benefits, Increase Related To Acquired Tax Positions Recorded Through Purchase Accounting
Unrecognized Tax Benefits, Increase Related To Acquired Tax Positions Recorded Through Purchase Accounting
Increase related to tax positions of the current year
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions
Decrease related to tax positions of prior years
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions
Decrease due to settlements
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities
Decrease due to lapse in statutes of limitations
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations
Unrecognized tax benefits ending balance
Exercise Price Range [Axis]
Exercise Price Range [Axis]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
$.25 - $2.50 [Member]
Stock Option Exercised Price Range From Zero Point Two Five To Two Point Five Zero [Member]
Stock Option Exercised Price Range From Zero Point Two Five To Two Point Five Zero [Member]
$4.26 - $7.50 [Member]
Stock Option Exercised Price Range From Four Point Two Six to Seven Point Five Zero [Member]
Stock Option Exercised Price Range From Four Point Two Six to Seven Point Five Zero
$2.51 - $13.66 [Member]
Stock Option Exercised Price Range From Two Point Five One To Thirteen Point Six Six [Member]
Stock Option Exercised Price Range From Two Point Five One To Thirteen Point Six Six [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit
Option Outstanding, Numbers
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options
Option Outstanding, Weighted Average Exercise Price
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price
Option Outstanding, Weighted Average Remaining Contractual Life (Years)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term
Share Repurchases
Treasury Stock [Text Block]
Schedule Of Income Taxes [Table]
Schedule Of Income Taxes [Table]
Schedule Of Income Taxes [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Foreign [Member]
Foreign Tax Authority [Member]
Federal [Member]
Federal [Member]
Federal [Member]
State [Member]
State and Local Jurisdiction [Member]
State and Foreign [Member]
State and Foreign [Member]
State and Foreign [Member]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Benefit (provision) for income taxes
Current federal alternative minimum tax and state income tax liabilities
Current Federal Alternative Minimum Tax And State Income Tax Liabilities
Current federal alternative minimum tax and state income tax liabilities
Current foreign income tax expense
Federal statutory rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate
Deferred tax assets, valuation allowance
Increase in deferred tax assets valuation allowance
Valuation Allowance, Deferred Tax Asset, Change in Amount
Net deferred tax asset
Operating loss carryforwards
Operating Loss Carryforwards
Alternative minimum tax credit carryforwards
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax
Research and development credit carryforwards
Deferred Tax Assets, Tax Credit Carryforwards, Research
Changes In Excess Tax Benefit From Share Based Compensation Financing Activities
Changes In Excess Tax Benefit From Share Based Compensation Financing Activities
Changes In Excess Tax Benefit From Share Based Compensation Financing Activities
Undistributed foreign earnings
Deferred Tax Liabilities, Undistributed Foreign Earnings
Unrecognized tax benefits
Unrecognized tax benefits to be reversed in next year due to filing of related tax returns and expiration of statute of limitations
Unrecognized Tax Benefits To Be Reversed In Next Year Due To Filing Of Related Tax Returns And Expiration Of Statute Of Limitations
Unrecognized tax benefits to be reversed in next year due to filing of related tax returns and expiration of statute of limitations
Accrued interest expense on unrecognized tax benefits
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Deferred tax (benefit) provision
Write off of deferred tax asset
Deferred Tax Asset, Write Off
Deferred Tax Asset, Write Off
Deferred income tax liability to be recognized in future years related to subpart F income
Deferred Income Tax Liability to Be Recognized in Future Years Related to Subpart F Income
Deferred Income Tax Liability to Be Recognized in Future Years Related to Subpart F Income
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance
Allowance for Doubtful Accounts Receivable
Additions
Allowance for Doubtful Accounts Additions
Allowance for Doubtful Accounts Additions
Reductions, (recoveries) and write-offs
Allowance For Doubtful Accounts, Reductions, Recoveries And Written Offs
Allowance for doubtful accounts, reductions, recoveries and written offs
Ending Balance
Statement Consolidated Statements Of Operations And Comprehensive Income [Abstract]
Statement - Consolidated Statements Of Operations And Comprehensive Income [Abstract]
Revenues
Sales Revenue, Services, Net
Cost of revenues (excludes amortization of intangible assets resulting from acquisitions shown below)
Cost of Services
Selling and marketing
Selling and Marketing Expense
Research and development
Research and Development Expense
General and administrative
General and Administrative Expense
Gain on asset disposition
Settlement of litigation
Gain (Loss) Related to Litigation Settlement
Total expenses from operations
Costs and Expenses
Income (loss) from operations
Operating Income (Loss)
Interest and other (expense) income, net
Other Nonoperating Income (Expense)
Gain (loss) from foreign currency transactions
Gain on sale of marketable securities
Income (loss) before income tax benefit (provision)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Net loss
Net loss available to common stockholders per common share:
Earnings Per Share [Abstract]
Basic (in dollars per share)
Diluted (in dollars per share)
Weighted-average number of shares used in per share calculation - common stock:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)
Diluted (in shares)
Comprehensive (loss) income:
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other comprehensive (loss) income:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency cumulative translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Unrealized loss on marketable securities, net
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Realized gain on the sale of marketable securities, net
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax
Total comprehensive loss
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Business Segments [Axis]
Business Segments [Axis]
Segment [Domain]
Segment [Domain]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Balance as of December 31, 2012
Goodwill allocated to ARS disposition
Translation adjustments
Goodwill, Translation Adjustments
Balance as of December 31, 2013
Schedule Of Stock Options [Table]
Schedule Of Stock Options [Table]
Schedule Of Stock Options [Table]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Domain]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Domain]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Plan [Domain]
Stock Under Plans [Member]
Stock Under Plans [Member]
Stock Under Plans [Member]
Stock Options And Restricted Stock Units [Member]
Stock Options And Restricted Stock Units [Member]
Stock Options And Restricted Stock Units [Member]
Schedule Of Stock Options [Line Items]
Schedule Of Stock Options [Line Items]
Schedule Of Stock Options [Line Items]
Common stock reserved for future issuance
Common Stock, Capital Shares Reserved for Future Issuance
Quarterly Financial Information (Unaudited)
Quarterly Financial Information [Text Block]
Property and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Property, plant and equipment, lease rent capitalized
Property, Plant And Equipment, Lease Rent Capitalized
Property, plant and equipment, lease rent capitalized
Depreciation expense
Schedule of Property, Plant and Equipment [Table]
Schedule of Property, Plant and Equipment [Table]
Computer software [Member]
Software [Member]
Office equipment and furniture [Member]
Office Equipment And Furniture [Member]
Office Equipment And Furniture [Member]
Automobiles [Member]
Automobiles [Member]
Leasehold improvements [Member]
Leasehold Improvements [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 and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property and equipment, net
Capital leases
Capital Leased Assets, Gross
Accumulated depreciation, capital leases
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation
Business Combinations
Business Combination Disclosure [Text Block]
Statutory federal tax rate
State taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes
Nondeductible items
Effective Income Tax Rate Reconciliation, Nondeductible Expense
Foreign rate differences
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential
Change in statutory tax rates
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance
Stock compensation shortfalls
Effective Income Tax Rate Reconciliation, Stock Compensation Shortfalls
Effective income tax rate reconciliation, stock compensation shortfalls
True-ups and other adjustments
Effective Income Tax Rate Reconciliation, True-Ups And Other Adjustments
Effective income tax rate reconciliation, true-ups and other adjustments
Effective Income Tax Rate Reconciliation, Subpart F Income Recapture
Effective Income Tax Rate Reconciliation, Subpart F Income Recapture
Effective Income Tax Rate Reconciliation, Subpart F Income Recapture
Market-based stock awards
Effective Income Tax Rate Reconciliation, Tax Credits
Foreign tax withholding
Effective Income Tax Rate Reconciliation, Foreign Tax Withholding
Effective income tax rate reconciliation, foreign tax withholding
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Uncertain Tax Positions
Effective income tax rate reconciliation, uncertain tax positions
Effective tax rate
Effective Income Tax Rate, Continuing Operations
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets held and used
Long Lived Assets Held And Used Fair Value Disclosure
Long Lived Assets Held And Used Fair Value Disclosure
Total Gains (Losses)
Fair Value Assets And Liabilities Measured On Non Recurring Basis Gain Loss
Fair Value Assets And Liabilities Measured On Non Recurring Basis Gain Loss
Stock authorized for repurchase
Stock Repurchase Program, Number of Shares Authorized to be Repurchased
Total number of shares repurchased
Average price paid per share
Treasury Stock Acquired, Average Cost Per Share
Total share repurchases
Revenues
Cost of revenues
Selling and marketing
Research and development
General and administrative
Settlement of litigation
Total expenses from operations
Loss from operations
Interest and other (expense) income, net
Loss before income taxes
Weighted-average number of shares used in per share calculations:
Weighted-average number of shares used in per share calculations [Abstract]
Weighted-average number of shares used in per share calculations [Abstract].
Component of (Loss) Income Before Income Tax
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Income Tax (Benefit) Provision
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Components of Net Deferred Income Taxes
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Deferred Tax Asset Valuation Allowance
Schedule Of Deferred Tax Assets Valuation Allowance [Table Text Block]
Schedule Of Deferred Tax Assets Valuation Allowance [Table Text Block]
Unrecognized Income Tax Benefits
Summary of Income Tax Contingencies [Table Text Block]
Statement Consolidated Balance Sheets [Abstract]
Statement - Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance
Allowance for Doubtful Accounts Receivable, Current
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock,shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Common stock, 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, shares issued (in shares)
Common Stock, Shares, Issued
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Treasury Stock, Shares
Treasury Stock, Shares
Schedule of Revenues Based on Customer Location
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Schedule of Composition of the Company's Property and Equipment
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [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]
Number of Shares, Options outstanding beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Number of Shares, Options granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Number of Shares, Options exercised (in shares)
Number of Shares, Options forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Number of Shares, Options expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Number of Shares, Options outstanding ending balance (in shares)
Weighted-average remaining contractual term for options outstanding (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Aggregate intrinsic value of options outstanding, Beginning Balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value
Aggregate intrinsic value of options outstanding, Ending Balance
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 [Roll Forward]
Weighted-Average Exercise Price, Options outstanding beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Weighted-Average Exercise Price, Options 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, Options 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, Options forfeited (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, Options expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Options outstanding ending balance (in dollars per share)
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Award Type [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Award Type [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Award Type [Axis]
Share Based Compensation Arrangements By Share Based Payment Award Award Type [Domain]
Share Based Compensation Arrangements By Share Based Payment Award Award Type [Domain]
Share Based Compensation Arrangements By Share Based Payment Award Award Type [Domain]
Restricted Stock [Member]
Restricted Stock [Member]
Time Based Restricted Stock Awards [Member]
Time Based Restricted Stock Awards [Member]
Time-Based Restricted Stock Awards [Member]
Restricted Stock And Restricted Stock Units [Member]
Restricted Stock And Restricted Stock Units [Member]
Restricted Stock And Restricted Stock units [Member]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
1999 Stock Option Plan And 2007 Equity Incentive Plan [Member]
Nineteen Ninety Nine Stock Option Plan And Two Thousand Seven Equity Incentive Plan [Member]
Nineteen Ninety Nine Stock Option Plan And Two Thousand Seven Equity Incentive Plan [Member]
2007 Equity Incentive Plan [Member]
Two Thousand Seven Equity Incentive Plan [Member]
Two Thousand Seven Equity Incentive Plan [Member]
Deferred Bonus and Profit Sharing Plan by Title of Individual [Axis]
Deferred Bonus and Profit Sharing Plan by Title of Individual [Axis]
Title of Individual with Relationship to Entity [Domain]
Title of Individual with Relationship to Entity [Domain]
Chief Executive Officer [Member]
Chief Executive Officer [Member]
Executive Management [Member]
Executive Management [Member]
Executive Management [Member].
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Axis]
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Axis]
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Axis]
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Domain]
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Domain]
Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Vested And Expected To Vest [Domain]
Upon Achievement Of 100%[Member]
Upon Achievement Of Hundred Percentage [Member]
Upon Achievement Of Hundred Percentage [Member]
Upon Achievement Of 200%[Member]
Upon Achievement Of Two Hundred Percentage [Member]
Upon Achievement Of Two Hundred Percentage [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Percentage common stock outstanding shares
Percentage Common Stock Outstanding Shares
Percentage common stock outstanding shares.
Vesting period of options granted, in years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Options expiration period from date of grant, in years
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Period
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Period
Increase in number of shares available for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease)
Shares available for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Number of shares eligible to vest for three years (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of shares eligible to vest for three years (in shares)
Number Of Shares Eligible To Vest For Three Years
Number of shares eligible to vest for three years.
Weighted percentage of revenue and adjusted EDITDA goals
Weighted Percentage Of Revenue And Adjusted Earnings Before Interest Taxes Depreciation And Amortization Goals
Weighted Percentage Of Revenue And Adjusted Earnings Before Interest, Taxes, Depreciation And Amortization Goals.
Target Performance Metric, Percentage
Target Performance Metric, Percentage
Target Performance Metric, Percentage
Number of shares eligible to vest for given years (in shares)
Number Of Shares Eligible To Vest For Given Years
Number of shares eligible to vest for given years.
Aggregate intrinsic value of options outstanding
Right of repurchase of shares awarded, lapse rate
Share Based Compensation Arrangement By Share Based Payment Award Right Of Repurchase Of Shares Awarded Lapse Rate
Share-based compensation arrangement by share-based payment award, right of repurchase of shares awarded, lapse rate
Restricted stock forfeited (in shares)
Stock Repurchased and Retired During Period, Shares
Aggregate intrinsic value for non-vested shares
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Aggregate Intrinsic Value
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, aggregate intrinsic value
Weighted average remaining contractual term for non-vested shares (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms
Weighted-average period expected to recognize compensation expense (in years)
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition
Total unrecognized compensation expense
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized
Restricted stock units vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Repurchase of common stock (in shares)
Aggregate purchase price of shares repurchased
Payments Related to Tax Withholding for Share-based Compensation
Common stock outstanding (in shares)
Class of Warrant or Right, Outstanding
Common stock issued for warrant exercised (in shares)
Common Stock Issued Upon Exercise Of Warrants
Common Stock Issued Upon Exercise Of Warrants
Domestic
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Beginning Balance
Additions
Increase In Valuation Allowances And Reserves
Increase In Valuation Allowances And Reserves
Reductions
Decrease In Valuation Allowances And Reserves
Decrease In Valuation Allowances And Reserves
Ending Balance
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]
Restricted Stock Unit [Member]
Restricted Stock Unit [Member]
Restricted Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested Stock Awards, Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Nonvested Stock Awards, Shares Granted (in shares)
Nonvested Stock Awards, Shares Vested (in shares)
Nonvested Stock Awards, Shares Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Nonvested Stock Awards Shares, Ending balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant-Date Fair Value, Beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value, Granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value, Vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value, Ending balance (in dollars per share)
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case Type [Domain]
Patent Litigation [Member]
Patent Litigation [Member]
Patent Litigation [Member]
Patents [Member]
Patents [Member]
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Total rent expense, under non-cancellable operating leases
Operating Leases, Rent Expense, Net
Deferred rent and capitalized assets
Number of shares issued under patent purchase
Number Of Shares Restricted Under Patent Purchase
Number of shares restricted under patent purchase
Restricted common stock
Business Acquisition, Contingent Consideration, at Fair Value
Amount allocated to litigation settlement
Payments for Legal Settlements
Percentage of acquired patents
Period In Which The First Fifty Percentage Will Amortized
Period in which the first fifty percentage will amortized
Date of patents amortized
Percentage Of Acquired Intangible Will Amortized In July Two Thousand Eighteen
Percentage Of Acquired Intangible Will Amortized In July Two Thousand Eighteen.
Percentage of acquired patents in different period
Period In Which The Second Fifty Percentage Will Amortized
Period In Which The Second Fifty Percentage Will Amortized
Date of patents amortized in different period
The Percentage Of Acquired Intangible Will Amortized In September Two Thousand Twenty Four
The percentage of acquired intangible will amortized in September two thousand twenty four
Settlement of litigation
Weighted-Average Assumptions
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]
Stock Option Activity
Schedule of Share-based Compensation, Activity [Table Text Block]
Options Outstanding Range of Exercise Price
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Nonvested Stock Awards
Schedule of Nonvested Share Activity [Table Text Block]
Shares Reserved for Issuance
Schedule Of Shares Reserved For Issuance Table [Text Block]
Schedule Of Shares Reserved For Issuance [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]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]