Earnings Per Share, Basic and Diluted [Abstract] Earnings Per Share [Text Block] Net Loss per Common Share Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Discontinued Operations and Assets Held For Sale Fair Value Measurements [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Share-based Compensation [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-based Compensation Warrants and Rights Note Disclosure [Abstract] Schedule Of Warrants And Rights Note Disclosure [Text Block] Warrants Schedule Of Warrants And Rights Note Disclosure Text block Revenue from Settlement and Licensing Agreement [Abstract] Revenue from Settlement and Licensing Agreement Abstract Revenue From Settlement And Licensing Agreement [Text Block] Revenue from Settlement and Licensing Agreement Revenue From Settlement And Licensing Agreement Commitments and Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Risks and Uncertainties [Abstract] Concentration Risk Disclosure [Text Block] Risks and Uncertainties Accounting Policies [Abstract] Basis Of Accounting Policy Policy [Text Block] Basis of presentation and principles of consolidation Use Of Estimates Use of estimates Foreign Currency Transactions and Translations Policy [Text Block] Translation into U.S. dollars Cash and Cash Equivalents, Policy [Policy Text Block] Cash and cash equivalents Derivatives, Reporting of Derivative Activity [Policy Text Block] Derivative instruments Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Intangible assets Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Goodwill Property, Plant and Equipment, Policy [Policy Text Block] Property and equipment Revenue Recognition, Policy [Policy Text Block] Revenue recognition Legal Costs, Policy [Policy Text Block] Operating legal costs Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-based compensation Statement Of Financial Position [Abstract] Statement [Table] Legal Entity [Axis] Entity [Domain] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Prior To Merger [Member] Prior to the Merger Statement [Line Items] Assets Current [Abstract] Current assets Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash and Cash Equivalents, at Carrying Value Disposal Group, Including Discontinued Operation, Assets, Current Assets held for sale Total assets held for sale Assets held for sale Deposits Assets, Current Deposits with courts Other Assets, Current Other current assets Assets Current Total current assets Property, Plant and Equipment, Net Property and equipment, at cost, net of $389 and $134 accumulated depreciation as of December 31, 2014 and 2013, respectively Property, Plant and Equipment, Net Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Goodwill Goodwill Other Assets, Noncurrent Other assets Assets Total assets Liabilities Current [Abstract] Current liabilities Accounts Payable and Accrued Liabilities Current Accounts payable and accrued expenses Derivative Liability, Current Derivative warrant liabilities Liabilities Current Total current liabilities Liabilities Noncurrent [Abstract] Long-term liabilities Derivative Liabilities Noncurrent Derivative warrant liabilities Other Liabilities, Noncurrent Other liabilities Commitments and Contingencies Commitments and contingencies (Note 14) Stockholders Equity [Abstract] Stockholders' equity Preferred Stock Value Series A Convertible Preferred stock, $0.01 par value per share; 5,000,000 authorized; none issued and outstanding Common Stock Value Common stock, $0.01 par value per share 150,000,000 authorized; 93,404,895 and 84,502,653 issued and outstanding as of December 31, 2014 and 2013, respectively Additional Paid In Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders Equity Total stockholders' equity Balance Balance Liabilities and Stockholders Equity Total liabilities and stockholders' equity Goodwill and Intangible Assets Disclosure [Abstract] Schedule Of Finite-Lived Intangible Assets [Table Text Block] Components of Finite-Lived Intangible Assets Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Computation of Net Loss per Common Share Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures Schedule Of Fair Value Assets and Liabilities Measured On Recurring Basis Table [Text Block] Assets and Liabilities Measured at Fair Value on Recurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Assets and Liabilities Measured at Fair Value on Nonrecurring Basis Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Changes in Liabilities Measured at Fair Value Using Significant Unobservable Inputs Fair Value Inputs Liabilities Quantitative Information Table [Text Block] Fair Value Measurements Based Upon Sensitivity and Nature of Inputs Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Domain] Restricted Stock Units (RSUs) [Member] Award Type [Axis] Equity Award [Domain] Employee Stock Option [Member] Stock Option [Member] Stock Option [Member] Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stockholders Equity [Line Items] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Options Granted Schedule Of Share-Based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Stock Options and Restricted Stock Units Activity Schedule Of Changes In Warrants Outstanding During Period [Table Text Block] Schedule Of Changes In Warrants Activity Schedule Of Changes In Warrants Outstanding During Period Table Text Block Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Schedule Of Warrants Outstanding Disclosure General Additional Information [Abstract] Disclosure - General - Additional Information [Abstract] Geographical [Axis] Geographical [Domain] Israel [Member] Israel Germany [Member] Germany [Member] Deferred Revenue Arrangement Type [Axis] Deferred Revenue [Domain] Subscription Arrangement [Member] Subscription Arrangement Additional [Member] Range [Axis] Range [Domain] Maximum [Member] Maximum [Member] Legal Parents 2006 Option Plans [Member] Legal Parents 2012 Option Plans [Member] Cost Method Investment Ownership Percentage The percentage of ownership of common stock or equity participation in the investee accounted for under the cost method of accounting. Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Patented Technology [Member] Acquired Technology [Member] Patents [Member] Minimum [Member] Minimum [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets, Gross Patents Finite-Lived Intangible Assets, Accumulated Amortization Less: accumulated amortization Impairment of Intangible Assets, Finite-lived Less: impairment of patents Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Weighted average amortization period (years) Subsidiaries [Member] Nokia Portfolio [Member] Technology [Member] Nokia Portfolio member Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Licensing Agreements [Member] Opening Stock Price [Member] Closing Stock Price [Member] Weighted Average [Member] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Member] Amortization of Intangible Assets Amortization and impairment of intangibles Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Sale of Stock, Price Per Share Earnings Per Share Disclosure [Table] Equity Components [Axis] Equity Component [Domain] Vested and Unvested Stock Option [Member] Both vested and unvested options to purchase an equal number of shares of common stock of the Company [Member] Unvested Stock Option [Member] Unvested penny options [Member] Unvested Restricted Stock Units [Member] Unvested Restricted Stock Units (“RSU”) [Member] Common Stock Shares Granted But Not Yet Vested [Member] Common stock shares granted, but not yet vested [Member] Warrant [Member] Warrants to purchase an equal number of shares of common stock of the Company [Member] Basic And Diluted [Axis] Basic And Diluted [Domain] Basic Numerator [Member] Basic Denominator [Member] Diluted Numerator [Member] Diluted Denominator [Member] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share Disclosure [Line Items] Income (Loss) from Continuing Operations Attributable to Parent, Total Loss from continuing operations attributable to shares of common stock Loss from continuing operations Loss from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent, Total Loss from discontinued operations attributable to shares of common stock Loss from discontinued operations Loss from discontinued operations Net Income (Loss) Attributable to Parent, Total Net loss attributable to shares of common stock Net loss Net loss Net loss for the year Weighted Average Number Of Shares Issued, Basic Weighted average number of shares of common stock outstanding during the period Incremental Common Shares Attributable To Share Based Payment Arrangements Basic Weighted average number of penny stock options Amount of incremental common stock shares attributable to share based payment arrangement basic during the period. Weighted Average Number Of Shares Outstanding, Basic Basic common stock shares outstanding Basic Income (Loss) from Continuing Operations, Per Basic Share Basic loss per common stock share from continuing operations Loss per share from continuing operations Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Basic loss per common stock share from discontinued operations Loss per share from discontinued operations Earnings Per Share, Basic Basic net loss per common stock share Total net loss per share Net loss per share (in dollars per share) Incremental Net Income Loss From Continuing Opreartion Available To Derivative Warrants Diluted Increase in net loss attributable to derivative warrants Increase in net loss attributable to derivative warrants . Income Loss From Continuing Operations Diluted Diluted net loss from continued operations attributable to shares of common stock Net Income or Loss from continuing operations resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. Income Loss From Discontinuing Operations Diluted Diluted net loss from discontinued operations attributable to shares of common stock Net Income or Loss from discontinuing operations resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. Net Income (Loss) Available to Common Stockholders, Diluted, Total Diluted net loss attributable to shares of common stock Shares Issued Upon Exercise Of Derivative Warrants Outstanding Shares assumed issued upon exercise of derivative warrants during the period Shares assumed issued upon exercise of derivative warrants during the period. Weighted Average Number Of Shares Outstanding, Diluted Diluted common stock shares outstanding Diluted Income (Loss) from Continuing Operations, Per Basic and Diluted Share Diluted loss per common stock share from continuing operations Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Diluted loss per common stock share from discontinued operations Loss per share from discontinued operations Earnings Per Share, Diluted, Total Diluted net loss per common stock share Total net loss per share Diluted net loss per share (in dollars per share) Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as they had an anti-dilutive impact: Weighted-average number of shares outstanding during the period: Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount Total number of potentially dilutive instruments, excluded from the calculation of net loss per share Class of Stock [Axis] Class of Stock [Domain] Seriesa Convertible Preferred Stock [Member] Series A convertible preferred stock [Member] Series A Convertible Preferred stock Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: accumulated depreciation Preferred Stock, Par Or Stated Value Per Share Preferred stock, par value Series A convertible preferred stock converted upon completion of merger, par value Preferred Stock, Shares Authorized Preferred stock, authorized Preferred Stock, Shares Issued Preferred stock, issued Preferred Stock, Shares Outstanding Preferred stock, outstanding Common Stock, Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, authorized Common Stock, Shares, Issued Common stock, issued Common Stock, Shares, Outstanding Common stock, outstanding Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operation, Revenue Revenue Disposal Group, Including Discontinued Operation, Operating Expense Operating expenses Disposal Group Including Discontinued Operation Impairment Loss Loss on impairment Amount of impairment loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. Disposal Group, Including Discontinued Operation, Operating Income (Loss) Operating loss Disposal Group, Including Discontinued Operation, Other Income Non-operating income (expense) Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Loss before taxes on income Loss from discontinued operations before income taxes (including impairment loss of $0, $7,253, and $0 in 2014, 2013, and 2012, respectively)* Discontinued Operation, Tax Effect of Discontinued Operation Income tax expense Income tax expense Total Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Cash Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Accounts receivable Disposal Group, Including Discontinued Operation, Goodwill Goodwill at carrying amount of $208, net of $208 loss on impairment Disposal Group, Including Discontinued Operation, Intangible Assets Acquired technology at carrying amount of $10,133 (Note 7), net of $2,451 accumulated amortization and $7,045 loss on impairment Acquired Technology [Member] Goodwill, Gross Goodwill, Impairment Loss Goodwill impairment Impairment of Intangible Assets (Excluding Goodwill) Infomedia [Member] Cost Method Investments Disclosure Assets and Liabilities Measured At Fair Value On Recurring Basis [Abstract] Disclosure - Assets and Liabilities Measured at Fair Value on Recurring Basis [Abstract] Fair Value Assets and Liabilities Measured On Recurring Basis [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis [Table]