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Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2014	Feb. 20, 2015	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	VRNG
Entity Common Stock, Shares Outstanding		93,404,895
Entity Registrant Name	Vringo Inc
Entity Central Index Key	0001410428
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 290,632,195

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 16,023	$ 33,586
Assets held for sale	0	787
Deposits with courts	2,067	0
Other current assets	510	455
Total current assets	18,600	34,828
Property and equipment, at cost, net of $389 and $134 accumulated depreciation as of December 31, 2014 and 2013, respectively	221	230
Intangible assets, net	17,625	22,748
Goodwill	0	65,757
Other assets	989	247
Total assets	37,435	123,810
Current liabilities
Accounts payable and accrued expenses	4,731	5,445
Derivative warrant liabilities	1	43
Total current liabilities	4,732	5,488
Long-term liabilities
Derivative warrant liabilities	174	4,040
Other liabilities	1,349	0
Commitments and contingencies (Note 14)
Stockholders' equity
Series A Convertible Preferred stock, $0.01 par value per share; 5,000,000 authorized; none issued and outstanding	0	0
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	934	845
Additional paid-in capital	215,951	189,465
Accumulated deficit	(185,705)	(76,028)
Total stockholders' equity	31,180	114,282
Total liabilities and stockholders' equity	$ 37,435	$ 123,810

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 389	$ 134
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	150,000,000	150,000,000
Common stock, issued	93,404,895	84,502,653
Common stock, outstanding	93,404,895	84,502,653
Series A convertible preferred stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue	$ 1,425	$ 1,100	$ 100
Costs and Expenses*
Operating legal costs	25,368	21,590	10,010
Amortization and impairment of intangibles	5,123	3,445	1,692
Research and development	889	1,512	543
General and administrative	15,484	15,330	10,226
Goodwill impairment	65,757	0	0
Total operating expenses	112,621	41,877	22,471
Operating loss from continuing operations	(111,196)	(40,777)	(22,371)
Non-operating income (expense), net	(162)	225	(2)
Gain (loss) on revaluation of warrants	2,201	(1,196)	6,847
Issuance of warrants	(65)	0	(2,883)
Loss from continuing operations before income taxes	(109,222)	(41,748)	(18,409)
Income tax expense	0	0	0
Loss from continuing operations	(109,222)	(41,748)	(18,409)
Loss from discontinued operations before income taxes (including impairment loss of $0, $7,253, and $0 in 2014, 2013, and 2012, respectively)*	(209)	(10,428)	(2,377)
Income tax expense	(246)	(257)	(55)
Loss from discontinued operations	(455)	(10,685)	(2,432)
Net loss	$ (109,677)	$ (52,433)	$ (20,841)
Basic
Loss per share from continuing operations	$ (1.22)	$ (0.50)	$ (0.47)
Loss per share from discontinued operations	(0.01)	(0.13)	(0.06)
Total net loss per share	(1.23)	(0.63)	(0.53)
Diluted
Loss per share from continuing operations	(1.23)	(0.50)	(0.55)
Loss per share from discontinued operations	(0.01)	(0.13)	(0.06)
Total net loss per share	$ (1.24)	$ (0.63)	$ (0.61)
Weighted-average number of shares outstanding during the period:
Basic	89,640,330	83,201,691	39,111,176
Diluted	90,489,740	83,280,873	41,664,676
* Includes stock-based compensation expense, as follows:
Stock Based Compensation Expense	$ 10,967	$ 12,093	$ 8,087
Operating legal costs [Member]
* Includes stock-based compensation expense, as follows:
Stock Based Compensation Expense	1,343	1,221	523
Research and Development [Member]
* Includes stock-based compensation expense, as follows:
Stock Based Compensation Expense	431	470	366
General and Administrative [Member]
* Includes stock-based compensation expense, as follows:
Stock Based Compensation Expense	9,042	10,037	6,731
Discontinued Operations [Member]
* Includes stock-based compensation expense, as follows:
Stock Based Compensation Expense	$ 151	$ 365	$ 467

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Impairment loss from discontinued operations	$ 7,253	$ 0	$ 7,253	$ 0

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Balance at Dec. 31, 2011	$ 2,865	$ 170	$ 5,449	$ (2,754)
Conversion of Series A Convertible Preferred stock, classified as mezzanine equity	76	8	68	0
Recording of equity instruments upon Merger, net of fair value of issued warrants of $21,954 and issuance costs of $463	54,961	152	54,809	0
Issuance of warrants (Note 11)	2,883	0	2,883	0
Conversion of Series A Convertible Preferred stock, classified as equity	0	201	(201)	0
Exercise of stock options	509	8	501	0
Exercise of warrants	22,932	76	22,856	0
Issuance of shares in connection with a financing round, net of issuance costs of $52	31,148	96	31,052	0
Shares issued for acquisition of patents (Note 6)	750	2	748	0
Issuance of shares in connection with a financing round, net of issuance costs of $39	44,962	103	44,859	0
Stock-based compensation	8,087	3	8,084	0
Net loss for the year	(20,841)	0	0	(20,841)
Balance at Dec. 31, 2012	148,332	819	171,108	(23,595)
Exercise of stock options and vesting of RSU	974	22	952	0
Exercise of warrants	1,398	4	1,394	0
Conversion of derivative warrants into equity warrants	3,918	0	3,918	0
Stock-based compensation	12,093	0	12,093	0
Net loss for the year	(52,433)	0	0	(52,433)
Balance at Dec. 31, 2013	114,282	845	189,465	(76,028)
Exercise of stock options and vesting of RSU	2,160	21	2,139	0
Issuance of warrants (Note 11)	65	0	65	0
Exercise of warrants	12,999	64	12,935	0
Issuance of common stock for services	384	4	380	0
Stock-based compensation	10,967	0	10,967	0
Net loss for the year	(109,677)	0	0	(109,677)
Balance at Dec. 31, 2014	$ 31,180	$ 934	$ 215,951	$ (185,705)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($)
Private Financing [Member]
Issuance of stock, issuance costs	$ 52
Private Financing One [Member]
Issuance of stock, issuance costs	39
Common Stock Shares [Member]
Issuance of stock, issuance costs	$ 463

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net loss	$ (109,677)	$ (52,433)	$ (20,841)
Items not affecting cash flows
Depreciation and amortization	4,023	5,220	2,501
Impairment of goodwill and intangibles (Notes 6 and 8)	67,112	7,253	0
Change in deferred tax assets and liabilities	0	0	(58)
Stock-based compensation	10,967	12,093	8,087
Issuance of warrants	65	0	2,883
Assignment of patents	0	(100)	0
Change in fair value of warrants	(2,201)	1,196	(6,847)
Exchange rate loss (gain), net	192	(97)	8
Changes in assets and liabilities
Decrease (increase) in other assets	374	(135)	(208)
Increase in payables and accruals	763	3,538	7
Net cash used in operating activities	(28,382)	(23,465)	(14,468)
Cash flows from investing activities
Acquisition of property and equipment	(246)	(23)	(208)
Acquisition of patents	0	(1,420)	(22,548)
Cash acquired as part of acquisition of Vringo (Note 7)	0	0	3,326
Increase in deposits	(2,404)	(193)	(46)
Net cash used in investing activities	(2,650)	(1,636)	(19,476)
Cash flows from financing activities
Exercise of stock options	2,160	974	509
Exercise of warrants	11,292	590	12,275
Proceeds from issuance of common stock, net of issuance costs	0	0	76,110
Repayment of note payable	0	0	(3,200)
Cash provided by financing activities	13,452	1,564	85,694
Effect of exchange rate changes on cash and cash equivalents	17	163	(2)
Decrease (increase) in cash and cash equivalents	(17,563)	(23,374)	51,748
Cash and cash equivalents at beginning of period	33,586	56,960	5,212
Cash and cash equivalents at end of period	16,023	33,586	56,960
Supplemental disclosure of cash flows information
Income taxes paid	0	34	7
Non-cash investing and financing transactions
Non-cash acquisition of cost method investment	787	0	0
Conversion of derivative warrants into common stock	1,707	808	10,657
Conversion of derivative warrants into equity warrants	0	3,918	0
Non-cash acquisition of patents through issuance of common stock (Note 6)	0	0	750
Conversion of Series A Convertible Preferred stock, classified as mezzanine equity, into common stock, prior to the Merger	0	0	76
Conversion of Series A Convertible Preferred stock, classified as mezzanine equity, into common stock, upon the Merger	0	0	1,724
Conversion of Series A Convertible Preferred stock, classified as equity, into common stock, after the Merger	$ 0	$ 0	$ 201

General

12 Months Ended

Dec. 31, 2014

General [Abstract]

General

Note 1. General

Overview

Vringo, Inc., together with its consolidated subsidiaries (“Vringo” or the “Company”), is engaged in the development and monetization of intellectual property worldwide. The Company's intellectual property portfolio consists of over 600 patents and patent applications covering telecom infrastructure, internet search and mobile technologies. The Company’s patents and patent applications have been developed internally or acquired from third parties. In potential acquisitions, the Company seeks to purchase all of, or interests in, technology and intellectual property in exchange for cash, the Company’s securities and/or interests in the monetization of those assets. Revenue from this aspect of Vringo’s business can be generated through licensing and litigation efforts.

As further described in Note 7, Vringo closed a merger transaction (the “Merger”) with Innovate/Protect, Inc., a privately held corporation (“I/P”), on July 19, 2012. This transaction was accounted for as a reverse acquisition in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and as a result, I/P was deemed to be the acquiring company for accounting purposes. Accordingly, the Company’s financial statements for periods prior to the Merger reflect the historical results of I/P, and the Company’s financial statements for all periods from July 19, 2012 reflect the results of the combined company.

Prior to December 31, 2013, the Company operated a global platform for the distribution of mobile social applications and the services that it developed. On February 18, 2014, the Company executed the sale of its mobile social application business to InfoMedia Services Limited (“InfoMedia”), receiving an 8.25% ownership interest as consideration (Note 8). As part of the transaction, the Company will have the opportunity to license certain intellectual property assets and support InfoMedia to identify and protect new intellectual property.

Infrastructure Patents

On August 9, 2012, the Company entered into a patent purchase agreement with Nokia Corporation ("Nokia"), comprising of 124 patent families with counterparts in certain jurisdictions world-wide. The portfolio encompasses technologies relating to telecom infrastructure, including communication management, data and signal transmission, mobility management, radio resources management and services. Declarations were filed by Nokia indicating that 31 of the 124 patent families acquired may be essential to wireless communications standards. The Company also acquired certain patent portfolios during 2012 and 2013, and have filed over 60 internally developed patent applications since the Merger. As one of the means of realizing the value of the patents on telecom infrastructure, the Company has filed a number of suits against ZTE Corporation (“ZTE”), ASUSTeK Computer Inc. (“ASUS”), D-Link Corporation, and certain of their subsidiaries, affiliates and other companies in the United States, European jurisdictions, India, Australia, Brazil, and Malaysia alleging infringement of certain U.S., European, Indian, Australian, Brazilian, and Malaysian patents.

To date, in connection with the filed suits against ZTE, Vringo patents have been found to be infringed in the United Kingdom and Germany, and preliminary relief has been granted in India, Brazil, Romania, and the Netherlands. Separately, Vringo has entered into settlement and license agreements with ADT, Tyco, and Belkin.

Search Patents

On September 15, 2011, the Company’s wholly-owned subsidiary, I/P Engine, Inc. (“I/P Engine”), initiated litigation against AOL Inc., Google, Inc., IAC Search & Media, Inc., Gannett Company, Inc., and Target Corporation (collectively, the "Defendants") for infringement of claims of certain of its owned patents. Trial commenced during 2012, and, on November 6, 2012, the jury ruled in favor of I/P Engine and against the Defendants. After upholding the validity of the patents-in-suit, and determining that the asserted claims of the patents were infringed by the Defendants, the jury found that reasonable royalty damages should be based on a "running royalty," and that the running royalty rate should be 3.5%. The jury also awarded I/P Engine a total of approximately $30.5 million. In January 2014, the United States District Court, Eastern District of Virginia (the “District Court”) ordered that I/P Engine recover an additional sum of $17.32 million from the Defendants for supplemental damages and prejudgment interest. Further, the District Court ruled that the appropriate ongoing royalty rate for Defendants' continued infringement of the patents-in-suit is a rate of 6.5% of the 20.9% royalty base previously set by the District Court. These rulings were appealed by the Defendants and the oral argument was heard before the United States Court of Appeals for the Federal Circuit (“Federal Circuit”) on May 6, 2014.

On August 15, 2014, the Federal Circuit reversed the judgment of the District Court by holding that the asserted infringement claims by the Company of the patents-in-suit are invalid for obviousness. The Company filed a petition with the Federal Circuit on October 15, 2014 seeking en banc review of the decision. On October 20, 2014, the Federal Circuit invited the defendants/appellants to respond to the petition. On December 15, 2014, the Federal Circuit denied I/P Engine's petition for rehearing of the case en banc and consequently, the Company announced that I/P Engine will seek review by the U.S. Supreme Court of the Federal Circuit’s decision.

Financial conditions

As of December 31, 2014, the Company had a cash balance of $16,023. The Company’s average monthly cash spent in operations for the years ended December 31, 2014 and 2013 was approximately $2,365 and $1,955, respectively. In addition, the Company paid approximately $2,404 in deposits with courts during 2014 related to proceedings in Germany, Brazil, and Malaysia, which are included in Deposits with courts in the consolidated balance sheet as of December 31, 2014.

On June 19, 2014, the Company entered into agreements with certain of its warrant holders, pursuant to which the warrant holders exercised for cash 5,697,227 of their outstanding Series 1 and Series 2 warrants, with an exercise price of $1.76 per share. The Company granted such warrant holders unregistered warrants of the Company to purchase an aggregate of 5,412,366 shares of the Company’s common stock, par value $0.01 per share, at an exercise price of $5.06 per share (the “June 2014 Warrants”). As a result of these transactions, the Company received $10,027 of proceeds. In addition, 1,126,815 options to purchase 1,126,815 shares of the Company’s common stock were exercised during the year ended December 31, 2014. As a result, the Company received $2,160 of proceeds.

As of December 31, 2014 and 2013, the Company’s total stockholders' equity was $31,180 and $114,282, respectively. The decrease in stockholders’ equity since December 31, 2013 is mainly due to the operating loss during the year ended 2014, which includes a non-cash goodwill impairment charge of $65,757 that was recorded during the fourth quarter of 2014 in connection with the annual goodwill impairment test performed by the Company. As a result of the first step of the goodwill impairment test, it was determined that the fair value of the reporting unit did not exceed its carrying amount as of December 31, 2014, mainly due to the decline of the Company’s common stock price during the fourth quarter of 2014. Accordingly, the Company performed the second step of the goodwill impairment test and determined that the implied value of its goodwill was zero. Refer to Note 6 for further discussion of this impairment charge.

The Company’s operating plans include efforts to increase revenue through the licensing of its intellectual property, strategic partnerships, and litigation, when required, which may be resolved through a settlement or collection. Disputes regarding the assertion of patents and other intellectual property rights are highly complex and technical. The majority of the Company’s expenditures consist of costs related to the Company’s four litigation campaigns. In the case against Google et al., the Company incurred costs during 2014 related to the preparation for the oral argument, which was heard before the Federal Circuit in May 2014, in addition to other related costs. In the cases against ZTE and ASUS, the Company incurred costs during 2014 related to the preparation and filing of briefs and other court documents, as well as case preparation and management. A large percentage of these costs were incurred in the United Kingdom, Australia, Germany, Brazil, the Netherlands, and France. In civil law jurisdictions, such as Germany, France, Spain, and others, the majority of costs are incurred in the early stages of litigation. With respect to the Company’s litigation in such countries, the respective campaigns are currently in the later stages and therefore the Company has already incurred the large majority of the related anticipated costs. As such, based on the Company’s plans, costs in these jurisdictions are projected to be lower in 2015 and other future periods.

Despite the Company’s plans, its legal proceedings may continue for several years and may require significant expenditures for legal fees and other expenses. Further, should the Company be deemed the losing party in certain of its litigations, it may be liable for some or all of its opponents’ legal fees. In addition, in connection with litigation, the Company has made several affirmative financial guarantees to courts around the world, and might face the need to make additional guarantees in the future. Refer to Note 14 for the Company’s disclosures of its commitments and contingencies for the assessments made by the Company with respect to legal fees and guarantees.

In addition, the Company’s plans to continue to expand its planned operations through acquisitions and monetization of additional patents, other intellectual property or operating businesses may be time consuming, complex and costly to consummate. The Company may utilize many different transaction structures in its acquisitions and the terms of such acquisition agreements tend to be heavily negotiated. The Company’s ability to raise capital may be limited. Even if the Company is able to acquire particular patents or other intellectual property assets, there is no guarantee that it will generate sufficient revenue related to those assets to offset the acquisition costs. Therefore, no assurance can be given at this time as to whether the Company will be able to achieve its objectives or whether it will have the sources of liquidity for follow through with its operating plans.

In addition, until the Company generates sufficient revenue, the Company may need to raise additional funds, which may be achieved through the issuance of additional equity or debt, or through loans from financial institutions. There can be no assurance, however, that any such opportunities will materialize. The Company may also be able to raise additional funds through the exercise of its outstanding warrants and options, however, substantially all of such outstanding equity instruments are currently “out of the money” due to the decline in the Company’s common stock price which began in the third quarter of 2014.

The circumstances discussed above raise substantial doubt about the Company’s ability to continue as a going concern. The Company’s consolidated financial statements have been prepared assuming that it will continue as a going concern which contemplates the realization of assets and satisfaction of liabilities in the normal course of business.

Accounting and Reporting Policies

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Accounting and Reporting Policies

Note 2. Accounting and Reporting Policies

(a) Basis of presentation and principles of consolidation

The accompanying consolidated financial statements have been prepared in accordance with U.S. GAAP. All significant intercompany balances and transactions have been eliminated in consolidation.

(b) Use of estimates

The preparation of accompanying consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses for the periods presented. Actual results may differ from such estimates. Significant items subject to such estimates and assumptions include the valuation of goodwill and the Company’s intangibles assets, the useful lives of the Company’s intangible assets, the valuation of the Company’s derivative warrants, the valuation of stock-based compensation, deferred tax assets and liabilities, income tax uncertainties and other contingencies.

(c) Translation into U.S. dollars

The Company conducts certain transactions in foreign currencies, which are recorded at the exchange rate as of the transaction date. All exchange gains and losses occurring from the remeasurement of monetary balance sheet items denominated in non-dollar currencies are reflected as non-operating income or expense in the consolidated statements of operations.

(d) Cash and cash equivalents

The Company invests its cash in money market funds with financial institutions. The Company has established guidelines relating to diversification and maturities of its investments in order to minimize credit risk and maintain high liquidity of funds. All highly liquid investments with original maturities of three months or less at acquisition date are considered cash equivalents.

(e) Derivative instruments

The Company recognizes all derivative instruments as either assets or liabilities in the consolidated balance sheets at their respective fair values. The Company's derivative instruments, which are discussed in Notes 9 and 11, have been recorded as liabilities at fair value, and are revalued at each reporting date, with changes in the fair value of the instruments included in the consolidated statements of operations as non-operating income (expense).

(f) Intangible assets

Intangible assets include purchased patents which are recorded based on the cost to acquire them. These assets are amortized over their remaining estimated useful lives, which are periodically evaluated for reasonableness. The Company’s intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In assessing the recoverability of the Company's intangible assets, the Company must make estimates and assumptions regarding future cash flows and other factors to determine the fair value of the respective assets. These estimates and assumptions could have a significant impact on whether an impairment charge is recognized and also the magnitude of any such charge. Fair value estimates are made at a specific point in time, based on relevant information. These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. If these estimates or material related assumptions change in the future, the Company may be required to record impairment charges related to its intangible assets. Refer to Note 6 for further discussion of impairment charges recorded by the Company during the third quarter of 2014 and the fourth quarter of 2013, related to its intangible assets.

(g) Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill is reviewed for impairment at least annually, and when triggering events occur, in accordance with the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 350, Intangibles - Goodwill and Other. The Company has one reporting unit for purposes of evaluating goodwill impairment and performs its annual goodwill impairment test on December 31.

The Company has the option to perform a qualitative assessment to determine if an impairment is more likely than not to have occurred. If the Company can support the conclusion that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, the Company would not need to perform the two-step impairment test for the reporting unit. If the Company cannot support such a conclusion or the Company does not elect to perform the qualitative assessment, then the first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill. Fair value of the reporting unit is determined using certain valuation techniques, including the estimation of an implied control premium, in addition to the Company’s market capitalization on the measurement date as the market capitalization is derived on a non-controlling basis.

If the fair value of the reporting unit exceeds its carrying value, then the second step of the impairment test (measurement) does not need to be performed. If the fair value of the reporting unit is less than its carrying value, an indication of goodwill impairment exists for the reporting unit and the entity must perform the second step of the impairment test. Under the second step, an impairment loss is recognized for any excess of the carrying amount of the reporting unit’s goodwill over the implied fair value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to an acquisition price allocation and the residual fair value after this allocation is the implied fair value of the reporting unit goodwill. A significant amount of judgment is required in performing goodwill impairment tests including estimating the fair value of a reporting unit and the implied fair value of goodwill. Refer to Note 6 for further discussion of the interim goodwill impairment test performed by the Company as of September 30, 2014 and the annual goodwill impairment test performed by the Company as of December 31, 2014.

(h) Property and equipment

Property and equipment is stated at cost, net of accumulated depreciation. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets. The useful lives of the Company’s property and equipment are based on estimates of the period over which the Company expects the assets to be of economic benefit to the Company.

The following table summarizes the estimate useful lives of the Company’s property and equipment categories:

		No. of Years
Office furniture and equipment		3
Computers and related equipment		2-3
Leasehold improvements		Shorter of the useful life of the asset or the term of the lease

(i) Revenue recognition

Revenue from patent licensing and enforcement is recognized if collectability is reasonably assured, persuasive evidence of an arrangement exists, the sales price is fixed or determinable and delivery of the service has been rendered. The Company uses management's best estimate of selling price for individual elements in multiple-element arrangements, where vendor specific evidence or third party evidence of selling price is not available.

Currently, the Company’s revenue arrangements provide for the payment of contractually determined fees and other consideration for the grant of certain intellectual property rights related to the Company’s patents. These rights typically include some combination of the following: (i) the grant of a non-exclusive, retroactive and future license to manufacture and/or sell products covered by patents, (ii) the release of the licensee from certain claims, and (iii) the dismissal of any pending litigation. The intellectual property rights granted typically extend until the expiration of the related patents. Pursuant to the terms of these agreements, the Company has no further obligation with respect to the grant of the non-exclusive retroactive and future licenses, covenants-not-to-sue, releases, and other deliverables, including no express or implied obligation on the Company’s part to maintain or upgrade the related technology, or provide future support or services. Generally, the agreements provide for the grant of the licenses, covenants-not-to-sue, releases, and other significant deliverables upon execution of the agreement, or upon receipt of the upfront payment. As such, the earnings process is complete and revenue is recognized upon the execution of the agreement, upon receipt of the upfront fee, and when all other revenue recognition criteria have been met.

(j) Operating legal costs

Operating legal costs mainly include expenses incurred in connection with the Company’s patent licensing and enforcement activities, patent-related legal expenses paid to external patent counsel (including contingent legal fees), licensing and enforcement related research, consulting and other expenses paid to third parties, as well as related internal payroll expenses and stock-based compensation.

(k) Stock-based compensation

Stock-based compensation is recognized as an expense in the consolidated statements of operations and such cost is measured at the grant-date fair value of the equity-settled award. The fair value of stock options is estimated at the date of grant using the Black-Scholes-Merton option-pricing model. The expense is recognized on a straight-line basis, over the requisite service period. The Company uses the simplified method to estimate the expected term of options due to insufficient history and high turnover in the past. The contractual life of options granted under the Company’s 2006 and 2012 option plans are 6 and 10 years, respectively. Since the Company lacks sufficient history, expected volatility is estimated based on the average historical volatility of similar entities with publicly traded shares. The risk-free rate for the expected term of the option is based on the U.S. Treasury yield curve at the date of grant.

(l) Income taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided for the amount of deferred tax assets that, based on available evidence, are not more likely than not to be realized. Tax benefits related to excess deductions on stock-based compensation arrangements are recognized when they reduce taxes payable.

In assessing the need for a valuation allowance, the Company looks at cumulative losses in recent years, estimates of future taxable earnings, feasibility of tax planning strategies, the realizability of tax benefit carryforwards, and other relevant information. Valuation allowances related to deferred tax assets can be impacted by changes to tax laws, changes to statutory tax rates and future taxable earnings. Ultimately, the actual tax benefits to be realized will be based upon future taxable earnings levels, which are very difficult to predict. In the event that actual results differ from these estimates in future periods, the Company will be required to adjust the valuation allowance.

Significant judgment is required in evaluating the Company's federal, state and foreign tax positions and in the determination of its tax provision. Despite management's belief that the Company's liability for unrecognized tax benefits is adequate, it is often difficult to predict the final outcome or the timing of the resolution of any particular tax matters. The Company may adjust these accruals as relevant circumstances evolve, such as guidance from the relevant tax authority, its tax advisors, or resolution of issues in the courts. The Company's tax expense includes the impact of accrual provisions and changes to accruals that it considers appropriate. These adjustments are recognized as a component of income tax expense entirely in the period in which new information is available. The Company records interest related to unrecognized tax benefits in interest expense and penalties in the consolidated statements of operations as general and administrative expenses.

The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.

(m) Net loss per common share

Basic net loss per share is computed by dividing the net loss for the period by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by dividing the net loss for the period by the weighted-average number of shares of common stock plus dilutive potential common stock considered outstanding during the period. However, as the Company generated net losses in all periods presented, some potentially dilutive securities that relate to the continuing operations, including certain warrants and stock options, were not reflected in diluted net loss per share because the impact of such instruments was anti-dilutive.

(n) Commitments and contingencies

Liabilities for loss contingencies arising from assessments, estimates or other sources are to be recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs expected to be incurred in connection with a loss contingency are expensed as incurred.

(o) Fair value measurements

The Company measures fair value in accordance with FASB ASC 820-10, Fair Value Measurements and Disclosures. FASB ASC 820-10 clarifies that fair value is an exit price, representing the amount that would be received by selling an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, FASB ASC 820-10 establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Level 2: Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3: Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

(p) Recently issued accounting pronouncements

In July 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, which provides guidance on the presentation of unrecognized tax benefits. This guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows: to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. This guidance is effective beginning January 1, 2014 and is to be applied prospectively with retroactive application permitted. The Company adopted this guidance as of January 1, 2014, as required. There was no material impact of the consolidated financial statements resulting from the adoption.

In April 2014, the FASB issued ASU No. 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. This guidance changes the criteria for reporting a discontinued operation while enhancing disclosures in this area. This standard will be effective for the Company beginning January 1, 2015. Early adoption of the standard is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which impacts virtually all aspects of an entity's revenue recognition. The core principle of the new standard is that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-10, Development Stage Entities (Topic 915): Elimination of Certain Financial Reporting Requirements, Including an Amendment to Variable Interest Entities Guidance in Topic 810, Consolidation, which removes the definition of development stage entity, as was previously defined under U.S. GAAP, thereby removing the financial reporting distinction between development stage entities and other reporting entities. In addition, the ASU eliminates the requirements for development stage entities to (i) present inception-to-date information in their financial statements, (ii) label the financial statements as those of a development stage entity, (iii) disclose a description of the development stage activities in which the entity is engaged, and (iv) disclose in the first year in which the entity is no longer a development stage entity that in prior years it had been in the development stage. This guidance is effective for annual reporting periods beginning after December 31, 2014 and early adoption of the standard is permitted. The Company adopted this guidance during the second quarter of 2014.

In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements (Topic 205): Going Concern. The new standard provides guidance around management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and early adoption is permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

(q) Reclassification

Certain balances have been reclassified to conform to presentation requirements including discontinued operations.

Net Loss per Common Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share, Basic and Diluted [Abstract]

Net Loss per Common Share

Note 3. Net Loss per Common Share

The table below presents the computation of basic and diluted net losses per common share:

	For the year ended December 31,
	2014		2013		2012
Basic Numerator:
Loss from continuing operations attributable to shares of common stock	$	(109,222)	$	(41,748)	$	(18,409)
Loss from discontinued operations attributable to shares of common stock		(455)	$	(10,685)	$	(2,432)
Net loss attributable to shares of common stock	$	(109,677)	$	(52,433)	$	(20,841)
Basic Denominator:
Weighted average number of shares of common stock outstanding during the period		89,640,330		83,097,667		38,949,305
Weighted average number of penny stock options		—		104,024		161,871
Basic common stock shares outstanding		89,640,330		83,201,691		39,111,176
Basic loss per common stock share from continuing operations	$	(1.22)	$	(0.50)	$	(0.47)
Basic loss per common stock share from discontinued operations		(0.01)	$	(0.13)	$	(0.06)
Basic net loss per common stock share	$	(1.23)	$	(0.63)	$	(0.53)

Diluted Numerator:
Net loss from continuing operations attributable to shares of common stock	$	(109,222)	$	(41,748)	$	(18,409)
Increase in net loss attributable to derivative warrants	$	(2,201)	$	(59)	$	(4,701)
Diluted net loss from continuing operations attributable to shares of common stock	$	(111,423)	$	(41,807)	$	(23,110)
Diluted net loss from discontinued operations attributable to shares of common stock	$	(455)	$	(10,685)	$	(2,432)
Diluted net loss attributable to shares of common stock	$	(111,878)	$	(52,492)	$	(25,542)

Diluted Denominator:
Basic common stock shares outstanding		89,640,330		83,201,691		39,111,176
Shares assumed issued upon exercise of derivative warrants during the period		849,410		79,182		2,553,500
Diluted common stock shares outstanding		90,489,740		83,280,873		41,664,676
Diluted loss per common stock share from continuing operations	$	(1.23)	$	(0.50)	$	(0.55)
Diluted loss per common stock share from discontinued operations	$	(0.01)	$	(0.13)	$	(0.06)
Diluted net loss per common stock share	$	(1.24)	$	(0.63)	$	(0.61)

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:
Both vested and unvested options to purchase an equal number of shares of common stock of the Company		8,052,345		10,407,157		8,957,054
Unvested RSU to issue an equal number of shares of common stock of the Company		1,196,357		2,161,402		3,125,000
Common stock shares granted, but not yet vested		—		30,046		92,903
Warrants to purchase an equal number of shares of common stock of the Company		16,553,243		18,261,031		3,787,628
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share		25,801,945		30,859,636		15,962,585

Cash and Cash Equivalents

12 Months Ended

Dec. 31, 2014

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents

Note 4. Cash and Cash Equivalents

	As of December 31,
	2014		2013
Cash denominated in U.S. dollars	$	2,897	$	24,628
Money market funds denominated in U.S. dollars		13,085		3,184
Cash in currency other than U.S. dollars		41		5,774
	$	16,023	$	33,586

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

+ References + Details

Property and Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

Note 5. Property and Equipment

	As of December 31,
	2014		2013
Computers, software and equipment	$	207	$	171
Furniture and fixtures		201		83
Leasehold improvements		202		110
		610		364
Less: accumulated depreciation		(389)		(134)
	$	221	$	230

During the years ended December 31, 2014, 2013 and 2012, the Company recorded $255, $87 and $46 of depreciation expense, respectively.

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Note 6. Goodwill and Intangible Assets

Intangible assets

The following table provides information regarding the Company’s intangible assets, which consist of its patents:

	December 31, 2014		December 31, 2013		Weighted average amortization period (years)
Patents		28,213		28,213		8.9
Less: accumulated amortization		(9,233)		(5,465)
Less: impairment of patents		(1,355)		—
	$	17,625	$	22,748

The Company’s patents consist of three major patent portfolios, which were acquired from third parties, as well as a number of internally developed patents. The costs related to internally developed patents are expensed as incurred.

In August 2012, the Company purchased a portfolio from Nokia consisting of various patents and patent applications. The portfolio encompasses a broad range of technologies relating to telecom infrastructure, including communication management, data and signal transmission, mobility management, radio resources management and services. The total consideration paid for the portfolio was $22,000. In addition, the Company capitalized certain costs related to the acquisition of patents in the total amount of $548. Under the terms of the purchase agreement, to the extent that the gross revenue generated by such portfolio exceeds $22,000, the Company is obligated to pay a royalty of 35% of such excess. The Company has not recorded any amounts in respect of this contingent consideration, as both the amounts of future potential revenue, if any, and the timing of such revenue cannot be reasonably estimated.

In October 2012, the Company’s subsidiary entered into a patent purchase agreement. As partial consideration, the Company issued 160,600 shares of common stock to the seller with a fair value of $750. In addition, under the terms of the purchase agreement, 20% of the gross revenue collected will be payable to the seller as a royalty. The Company has not recorded any amounts in respect of this contingent consideration, as both the amounts of future potential revenue, if any, and the timing of such revenue cannot be reasonably estimated. In October 2013, the Company purchased an additional patent portfolio for approximately $1,400 which includes certain costs related to the acquisition of patents.

The Company’s patents are amortized over their expected useful lives (i.e., through the expiration date of the patent). During the years ended December 31, 2014, 2013, and 2012, the Company recorded amortization expense of $3,768, $3,445 and $1,692, respectively, related to its patents. Additionally, during the years ended December 31, 2013 and 2012, the Company recorded amortization expense of $1,688 and $763, respectively, related to the Company’s acquired technology which is further explained in Note 7.

During the third quarter of 2014, the Company determined that there were impairment indicators related to certain of its patents. A significant factor that was considered when making this determination included the announcement of the Federal Circuit’s decision on August 15, 2014 described in Note 1. The Company concluded that this factor was deemed a “triggering” event requiring that the related patent assets be tested for impairment during the third quarter of 2014. In performing this impairment test, the Company determined that the patent portfolio containing the patents-in-suit in I/P Engine's litigation against AOL Inc., Google Inc. et al, which represents an asset group, was subject to impairment testing. In the first step of the impairment test, the Company utilized its projections of future undiscounted cash flows based on the Company’s existing plans for the patents. As a result, it was determined that the Company’s projections of future undiscounted cash flows were less than the carrying value of the asset group. Accordingly, the Company performed the second step of the impairment test to measure the potential impairment by calculating the asset group’s fair value. This resulted in an impairment of $1,355 during the third quarter of 2014, related to the asset group, which represents the difference between the fair value and the carrying value of the asset group. The impairment charge is included in Amortization and impairment of intangibles in the consolidated statements of operations. There were no impairment charges related to the Company’s patents during the years ended December 31, 2013 and 2012.

Estimated amortization expense for each of the five succeeding years, of the Company’s patents owned at December 31, 2014 is as follows:

Year ending December 31,	Amount
2015	$	3,195
2016		2,878
2017		2,806
2018		2,783
2019		2,478
2020 and thereafter		3,485
	$	17,625

During the fourth quarter of 2013, the Company recorded an impairment loss of $7,045 related to its acquired technology (Note 8) in connection with the sale of its mobile social application business. Refer to Note 8 for further discussion. The acquired technology is included in assets held for sale in the consolidated balance sheet as of December 31, 2013 at fair value.

Goodwill

Interim Impairment Test Performed

The Company’s market capitalization, as further described in Note 2, is sensitive to the volatility of the Company’s stock price. On August 15, 2014, the Company’s stock price opened at $3.18, reached a low of $0.67, and closed at $0.88. The closing price of the Company’s stock on September 30, 2014 was $0.95. The average closing stock price of the Company from August 15, 2014 through September 30, 2014 was approximately $1.05, ranging from $0.95 to $1.40 during that time period. During the third quarter of 2014, the decline in stock price experienced by the Company was deemed a “triggering” event requiring that goodwill be tested for impairment as of September 30, 2014.

The Company performed the first step of the goodwill impairment test as of September 30, 2014 in order to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill. The fair value of the reporting unit is based upon the Company’s market capitalization on the measurement date, as the market capitalization is derived on a non-controlling basis, and an estimated implied control premium, which was determined with the assistance of a third party valuation specialist. The Company believes that this is the most appropriate valuation technique for determining the fair value of the reporting unit for various reasons. First, the Company’s common shares are publicly traded on NASDAQ. Therefore, active quoted market prices can be readily observed and the Company has a widely distributed shareholder base which provides for a substantial amount of daily trading volume. As such, the Company believes that the quoted market price is a good representation of a fair value of one share of the Company, or a fractional interest in the Company. Secondly, quoted market prices of an individual security may not be representative of the fair value of the reporting unit as a whole. For example, there may be a premium that an acquiring entity might pay for a controlling interest compared to the amount an investor would be willing to pay for a non-controlling interest. The implied control premium selected was developed based on certain observable market data of comparable companies in the intellectual property, internet software and services, telecommunications, and biotechnology industries.

The Company also considered the use other valuation approaches to determine the fair value of the reporting unit, including an income approach and other market approaches. When considering the use of an income approach for determining the fair value of the reporting unit, the Company considered using valuation techniques such as a discounted cash flows model. However, it was determined that, due to factors specific to the Company and the nature of its operations, the use of such techniques would impose significant feasibility hurdles and would not yield an effective result. First, the Company does not have a history of revenue to use for purposes of projecting future earnings and revenue streams. Secondly, the Company’s future earnings and revenue are heavily contingent upon the outcomes of certain litigation and settlements which are difficult to predict with a sufficient degree of precision. As such, the Company concluded that an income approach would not add meaningfully to the determination of fair value of the reporting unit.

When considering the use of other market approaches for determining the fair value of the reporting unit, the Company considered using relevant information generated by market transactions of comparable companies such as multiples of earnings and revenue. It was determined, however, that there was a lack of publicly available information with respect to comparable entities within the intellectual property market space that would enable the Company to gather useful information for purposes of such valuation techniques. Additionally, the fact that the Company has not yet experienced significant revenue or earnings poses limitations to the use of a market multiples approach. As such, the Company concluded that this technique would not yield an effective result.

Based upon the first step of the goodwill impairment test performed as of September 30, 2014, the Company determined that the fair value of the reporting unit was in excess of its carrying amount by approximately 14% and therefore the second step of the goodwill impairment test was not required at that time. The Company believes it made reasonable estimates and assumptions to calculate the fair value of the reporting unit as of the interim impairment test measurement date.

Annual Impairment Test Performed

The Company performed its annual goodwill impairment test as of December 31, 2014. The Company performed the first step of the goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, including goodwill. Similar to the interim goodwill impairment test described above, the fair value of the reporting unit was determined with the assistance of a third party valuation specialist using certain valuation techniques, including the estimation of an implied control premium, in addition to the Company’s market capitalization on the measurement date, as the market capitalization is derived on a non-controlling basis. The implied control premium selected was consistent with the control premium utilized in the interim goodwill impairment test described above, as no new significant observable market data of comparable companies was available.

During the fourth quarter of 2014, the Company’s stock price declined and the closing price of the Company’s stock on December 31, 2014 was $0.55. This decline in stock price resulted in a significantly lower market capitalization than that used when performing the interim goodwill impairment test described above. Based upon the first step of the goodwill impairment test performed as of December 31, 2014, the Company determined that the fair value of the reporting unit did not exceed its carrying amount and therefore the second step of the goodwill impairment test was required.

In performing the second step of the goodwill impairment test, the Company compared the carrying value of goodwill to its implied fair value. In estimating the implied fair value of goodwill, the Company assigns the fair value of the reporting unit to all of the assets and liabilities associated with the reporting unit as if the reporting unit had been acquired in a business combination. As part of this step, the Company estimated the fair value of its patents using an income approach. The key assumptions for this approach are projected future cash flows, ranges of royalty rates as determined by management in consultations with valuation experts, and a discount rate which is based on a weighted average cost of capital adjusted for the relevant risk associated with the characteristics of the business and the projected future cash flows. As a result, it was determined that the Company’s intangible assets were not impaired as of December 31, 2014.

Based on the estimated implied fair value of goodwill, the Company recorded an impairment charge of $65,757, to reduce the carrying value of goodwill to its implied fair value, which was determined to be zero. This impairment charge is included in Goodwill impairment in the consolidated statement of operations for the year ended December 31, 2014.

Other

Additionally, the Company recognized an impairment charge related to goodwill of approximately $208 during the fourth quarter of 2013 in connection with the sale of its mobile social application business. Refer to Note 8 for further discussion.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Business Combination

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combination

Note 7. Business Combination

As described in Note 2, I/P consummated the Merger with Vringo on July 19, 2012. The consideration consisted of various equity instruments, including: shares of common stock, options, preferred stock and warrants. Upon completion of the Merger, (i) all then outstanding 6,169,661 common stock shares of I/P, par value $0.0001 per share, were exchanged for 18,617,569, shares of the Company’s common stock, par value $0.01 per share, and (ii) all outstanding shares of Series A Convertible Preferred Stock of I/P, par value $0.0001 per share, were exchanged for 6,673 shares of Vringo’s Series A Convertible Preferred Stock, par value $0.01 per share, which shares were convertible into 20,136,445 shares of common stock of Vringo. In addition, Vringo issued to the holders of I/P capital stock an aggregate of 15,959,838 warrants to purchase an aggregate of 15,959,838 shares of the Company’s common stock with an exercise price of $1.76 per share. The Company recorded such warrants as long-term derivative liabilities (refer to Note 11). In addition, all outstanding and unexercised options to purchase I/P common stock, whether vested or unvested, were converted into 41,178 options to purchase the Company’s common stock. Immediately following the completion of the Merger, the former stockholders of I/P owned approximately 55.04% of the outstanding common stock of the combined company (or 67.61% of the outstanding shares of the Company’s common stock, calculated on a fully diluted basis), and Vringo’s stockholders prior to the Merger owned approximately 44.96% of the outstanding common stock of the combined company (or 32.39% of the outstanding shares of its common stock calculated on a fully diluted basis). This transaction was accounted for as a reverse acquisition in accordance with U.S. GAAP and as a result, I/P was deemed to be the acquiring company for accounting purposes. The total purchase price of $75,654 was allocated to the assets acquired and liabilities assumed as follows. Registration and issuance cost, in the total amount of $463, was recorded against the additional paid-in capital.

	Allocation of purchase
	price
Cash and cash equivalents	$	3,326
Working capital (excluding cash and cash equivalents)		(740)
Long-term deposit		8
Property and equipment		124
Acquired technology		10,133
Goodwill		65,965
Total assets acquired, net		78,816

Fair value of outstanding warrants granted by Legal Parent prior to the Merger, classified as a long-term derivative liability		(3,162)
Total liabilities assumed, net		(3,162)
		75,654
Measurement of consideration:
Fair value of vested stock options granted to employees, management and consultants, classified as equity		7,364
Fair value of outstanding warrants granted by the Legal Parent prior to the Merger, classified as equity		10,079
Fair value of Vringo shares of common stock and vested $0.01 options granted to employees, management and consultants		58,211
Total estimated purchase price	$	75,654

The fair values of the identified intangible assets were estimated by the Company using an income approach valuation model. Under the income approach, an intangible asset’s fair value is equal to the present value of future economic benefits to be derived from ownership of the asset. Indications of value are developed by discounting future net cash flows to their present value at market-based rates of return. The goodwill recognized as a result of the acquisition is primarily attributable to the value of the workforce and other intangible asset arising as a result of operational synergies, products, and similar factors which could not be separately identified. The useful life of the intangible assets for amortization purposes was determined considering the period of expected cash flows used to measure the fair value of the intangible assets adjusted as appropriate for the entity-specific factors including legal, regulatory, contractual, competitive economic or other factors that may limit the useful life of intangible assets. Goodwill recognized is not deductible for income tax purposes.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Discontinued Operations and Assets Held For Sale

12 Months Ended

Dec. 31, 2014

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations and Assets Held For Sale

Note 8. Discontinued Operations and Assets Held For Sale

On December 31, 2013, the Company entered into a definitive asset purchase agreement with InfoMedia for the sale of all assets and the assignment of all agreements related to the Company’s mobile social application business. The closing of the transaction occurred on February 18, 2014 (“Closing”).

In connection with the asset purchase agreement, an impairment loss of $7,253 was recorded during the fourth quarter of 2013, which represents the excess of the carrying value (which includes the portion of goodwill allocated to the mobile social application business) over the estimated fair value of the asset group. The fair value of the asset group was estimated using an income approach by developing a discounted, future, net cash flows model. The following table presents the carrying amounts of the major classes of assets from discontinued mobile social application in the Company’s consolidated balance sheet as of December 31, 2013. As of December 31, 2013, there were no liabilities classified as held for sale and no liabilities were transferred to InfoMedia upon Closing.

	As of December 31,
	2013
Cash	$	48
Accounts receivable		102
Goodwill at carrying amount of $208, net of $208 loss on impairment		—
Acquired technology at carrying amount of $10,133 (Note 7), net of $2,451 accumulated amortization and $7,045 loss on impairment		637
Total assets held for sale	$	787

Upon Closing, as consideration for the assets and agreements related to the Company’s mobile social application business, the Company received 18 Class B shares of InfoMedia, which represent an 8.25% ownership interest in InfoMedia. Additionally, the Company’s Chief Executive Officer was appointed as a full voting member on InfoMedia’s board of directors and the Company received a number of customary protective rights. The InfoMedia Class B shares are accounted for as a cost-method investment at the carrying amount of $787 and are included in Other assets in the consolidated balance sheet as of December 31, 2014. During the year ended December 31, 2014, there were no events or changes in circumstances that would indicate that the carrying amount of this investment may no longer be recoverable.

Additionally, in connection with the asset purchase agreement, the requirement to report the results of the Company’s mobile social application business as discontinued operations was triggered as of December 31, 2014. The following tables represent the components of operating results from discontinued operations, as presented in the consolidated statements of operations:

	As of December 31,
	2014		2013		2012
Revenue	$	37	$	224	$	269
Operating expenses		(266)		(3,334)		(2,666)
Loss on impairment		—		(7,253)		—
Operating loss		(229)		(10,363)		(2,397)
Non-operating income (expense)		20		(65)		20
Loss before taxes on income		(209)		(10,428)		(2,377)
Income tax expense		(246)		(257)		(55)
Loss from discontinued operations	$	(455)	$	(10,685)	$	(2,432)

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

+ Details

Fair Value Measurements

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

Fair Value Measurements

Note 9. Fair Value Measurements

The following table presents the placement in the fair value hierarchy of liabilities measured at fair value on a recurring basis as of December 31, 2014 and 2013:

			Fair value measurement at reporting date using
			Quoted prices in
			active markets		Significant other		Significant
			for identical		observable		unobservable
Derivative warrant liabilities	Balance		assets (Level 1)		inputs (Level 2)		inputs (Level 3)
As of December 31, 2014	$	175		—		—	$	175
As of December 31, 2013	$	4,083		—		—	$	4,083

The Company measures its derivative warrant liabilities at fair value. The Special Bridge Warrants, Conversion Warrants, the derivative Reload Warrants and the derivative Series 1 Warrants (as defined in Note 11) are classified within Level 3 because they are valued using the Black-Scholes-Merton and the Monte-Carlo models (as these warrants include down-round protection clauses), which utilize significant inputs that are unobservable in the market.

The following table presents the placement in the fair value hierarchy of assets that are measured at fair value on a non-recurring basis as of December 31, 2013 (there were no such assets or liabilities as of December 31, 2014):

Fair value measurement at reporting date using

Quoted prices in

active markets

Significant other

Significant

for identical

observable

unobservable

Balance

assets (Level 1)

inputs (Level 2)

inputs (Level 3)

Assets held for sale

787

150

—

637

In addition to the above, the Company’s financial instruments as of December 31, 2104 and 2013 consisted of cash, cash equivalents, receivables, accounts payable and deposits. The carrying amounts of all the aforementioned financial instruments approximate fair value. The following table summarizes the changes in the Company’s liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended December 31, 2014, 2013 and 2012:

	Level 3
Balance at January 1, 2012	$	—
Derivative warrants issued to I/P’s shareholders in connection with the Merger		21,954
Fair value of derivative warrants issued		3,162
Fair value adjustment, prior to exercise of warrants, included in consolidated statement of operations		156
Exercise of derivative warrants		(10,657)
Fair value adjustment at end of period, included in consolidated statement of operations		(7,003)
Balance at December 31, 2012		7,612
Net impact of removal of down-round clause in Series 1 Warrant		(2,300)
Fair value adjustment, prior to exercise of warrants, included in consolidate statement of operations		9
Exercise of derivative warrants		(808)
Fair value adjustment at end of period, included in consolidated statement of operations		(430)
Balance at December 31, 2013	$	4,083
Fair value adjustment, prior to exercise of warrants, included in consolidated statement of operations		56
Exercise of derivative warrants		(1,707)
Fair value adjustment at end of period, included in consolidated statement of operations		(2,257)
Balance at December 31, 2014		175

Valuation processes for Level 3 Fair Value Measurements

The fair value measurements of the derivative warrant liabilities related to the Special Bridge Warrants, Conversion Warrants, Reload Warrants and Series 1 Warrants are evaluated by management to ensure that changes are consistent with expectations of management based upon the sensitivity and nature of the following inputs.

December 31, 2014:

Description	Valuation technique	Unobservable inputs	Range
Conversion Warrants, derivative Reload Warrants and	Black-Scholes-Merton and the	Volatility	56.55% – 77.06	%
derivative Series 1 Warrants	Monte-Carlo models	Risk free interest rate	0.13% – 0.87	%
		Expected term, in years	0.48 – 2.55
		Dividend yield	0	%
		Probability and timing of down-round triggering event	50% occurrence in June 2015

December 31, 2013:

Description	Valuation technique	Unobservable inputs	Range
Special Bridge Warrants, Conversion Warrants, derivative	Black-Scholes-Merton and the	Volatility	46.85% – 52.63	%
Reload Warrants and derivative Series 1 Warrants	Monte-Carlo models	Risk free interest rate	0.16% – 1.11	%
		Expected term, in years	0.99 – 3.55
		Dividend yield	0	%
		Probability and timing of down-round triggering event	5% occurrence in December 2014

The fair value of the assets held for sale as of December 31, 2013 (Note 8) was determined by estimating the present value of the expected future cash flows associated with that asset or asset group by using certain unobservable market inputs. These inputs included discount rates, estimated future cash flows and certain continuing growth rate assumptions. The discount rates are intended to reflect the risk inherent in the projected future cash flows generated by the respective asset or asset group. The inputs used in the valuation were sensitive to certain factors related to mobile social application technology such as rapid changes in the industry and technological advances.

Sensitivity of Level 3 measurements to changes in significant unobservable inputs

The inputs to estimate the fair value of the Company’s derivative warrant liabilities are the current market price of the Company’s common stock, the exercise price of the warrant, its remaining expected term, the volatility of the Company’s common stock price, the Company’s assumptions regarding the probability and timing of a down-round protection triggering event and the risk-free interest rate. Significant changes in any of those inputs in isolation can result in a significant change in the fair value measurement. Generally, an increase in the market price of the Company’s shares of common stock, an increase in the volatility of the Company’s shares of common stock, an increase in the remaining term of the warrant, or an increase of a probability of a down-round triggering event would each result in a directionally similar change in the estimated fair value of the Company’s warrants. Such changes would increase the associated liability while decreases in these assumptions would decrease the associated liability. An increase in the risk-free interest rate or a decrease in the positive differential between the warrant’s exercise price and the market price of the Company’s shares of common stock would result in a decrease in the estimated fair value measurement of the warrants and thus a decrease in the associated liability. The Company has not, and does not plan to, declare dividends on its common stock, and as such, there is no change in the estimated fair value of the warrants due to the dividend assumption.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Stock-based Compensation

12 Months Ended

Dec. 31, 2014

Share-based Compensation [Abstract]

Stock-based Compensation

Note 10. Stock-based Compensation

The Company has a stock-based compensation plan available to grant stock options and RSU to the Company’s directors, employees and consultants. Under the 2012 Employee, Director and Consultant Equity Incentive Plan (the “Plan”), a maximum of 15,600,000 shares of common stock may be awarded. The Plan was approved by the Company’s stockholders on July 19, 2012, following the Merger, replacing Vringo’s then existing 2006 Stock Option Plan (the “2006 Plan”). The maximum number of available common shares under the Plan is made up of the 9,100,000 previously available common shares under the 2006 Plan and 6,500,000 newly available common shares. As of December 31, 2014, 5,793,420 shares were available for future grants under the Plan. Total stock-based compensation expense for the years ended December 31, 2014, 2013, and 2012 was $10,967, $12,093, and $8,087, respectively.

The following table illustrates the stock options granted during the year ended December 31, 2014. There were no RSU granted during the year ended December 31, 2014.

Title

Grant date

No. of
options

Exercise
price

Fair market
value at
grant date

Vesting terms

Assumptions used in
Black-Scholes option pricing
model

Directors, Management, and Employees

January - December 2014

1,300,000

$ 1.18 - $ 4.10

$ 0.65 - $ 2.32

Over 1 year for

Volatility: 57.75 % – 62.00%

Directors; Over 3 years

Risk free interest rate: 1.82% - 2.06%

for Management and

Expected term, in years: 5.31-5.81

Employees

Dividend yield: 0.00%

Certain options granted to officers, directors and certain key employees are subject to acceleration of vesting of 75% - 100% (according to the agreement signed with each grantee), upon a subsequent change of control.

The following tables summarize information about stock options and RSU activity during the year ended December 31, 2014:

	RSU				Options
	No. of RSU		Weighted average grant date fair value		No. of options		Weighted average exercise price		Exercise price range	Weighted average grant date fair value
Outstanding at January 1, 2014		2,161,403	$	3.61		10,457,159	$	3.23	$0.01 – $5.50	$	2.50
Granted		—		—		1,300,000	$	3.77	$1.18 – $4.10	$	2.04
Vested/Exercised		(959,421)	$	3.59		(1,126,815)	$	1.92	$0.01 – $3.72	$	1.31
Forfeited		(5,625)	$	3.72		(2,083,333)	$	3.53	$2.96 – $3.72	$	2.49
Expired		—		—		(494,666)	$	4.28	$0.96 – $5.50	$	1.94
Outstanding at December 31, 2014		1,196,357	$	3.64		8,052,345	$	3.36	$0.96 – $5.50	$	2.24
Exercisable at December 31, 2014		—		—		6,172,691	$	3.36	$0.96 – $5.50

	Non-vested stock options:				Non-vested RSU:
	No. of options		Weighted average grant date fair value		No. of RSUs		Weighted average grant date fair value
Balance at January 1, 2014		4,593,680	$	2.36		2,161,403	$	3.61
Granted		1,300,000	$	3.77		—	$	—
Vested		(3,343,193)	$	2.39		(959,421)	$	3.59
Forfeited		(670,833)	$	2.30		(5,625)	$	3.72
Balance at December 31, 2014		1,879,654	$	2.21		1,196,357	$	3.64

The following table summarizes information about employee and non-employee stock options outstanding as of December 31, 2014:

Exercise price		No. options outstanding	No. options exercisable	Weighted average remaining contractual life (years)
$	0.01-1.00	61,178	61,178	6.94
$	1.01-2.00	845,667	754,001	8.22
$	2.01-3.00	585,000	337,082	8.53
$	3.01-4.00	5,323,000	4,066,263	8.30
$	4.01-5.00	1,025,000	741,667	9.15
$	5.01-6.00	212,500	212,500	5.48
		8,052,345	6,172,691

As of December 31, 2014, the total aggregate intrinsic values of options outstanding and options exercisable were zero since these instruments were “out-of-the-money” as of December 31, 2014. As of December 31, 2013, the total aggregate intrinsic value of options outstanding and options exercisable was $2,558 and $2,445, respectively. As of December 31, 2012, the total aggregate intrinsic value of options outstanding and options exercisable was $3,548 and $3,200, respectively. The total aggregate intrinsic value of options exercised during the years ended December 31, 2014, 2013 and 2012 was $2,363, $1,322, and $2,417, respectively.

The total fair value of stock options that vested in the years ended December 31, 2014, 2013, and 2012 was $7,987, $7,807, and $5,927, respectively. As of December 31, 2014, there was approximately $7,575 of total unrecognized share-based payment cost related to non-vested options, shares and RSUs, granted under the incentive stock option plans. Overall, the cost is expected to be recognized over a weighted average of 1.25 years.

The Company did not recognize tax benefits related to its stock-based compensation as there is a full valuation allowance recorded.

Warrants

12 Months Ended

Dec. 31, 2014

Warrants and Rights Note Disclosure [Abstract]

Warrants

Note 11. Warrants

The following table summarizes information about warrant activity during the year ended December 31, 2014:

	No. of warrants		Weighted average exercise price		Exercise price range
Outstanding at January 1, 2014		18,427,478	$	3.15		$0.94 – $5.06
Granted		5,412,366	$	5.06	$	5.06
Exercised		(6,415,992)	$	1.76	$	1.76
Expired		(21,198)	$	0.94	$	0.94
Outstanding at December 31, 2014		17,402,654	$	4.26		$0.94 – $5.06

As part of the Merger, on July 19, 2012, Vringo issued to I/P’s stockholders 8,299,115 warrants at an exercise price of $1.76 per share and contractual term of 5 years (“Series 1 Warrant”). These warrants bear down-round protection clauses and as a result, they were initially classified as a long-term derivative liability and recorded at fair value. In addition, I/P’s stockholders received another 7,660,722 warrants at an exercise price of $1.76 per share and contractual term of 5 years (“Series 2 Warrant”). As the Series 2 Warrants do not have down-round protection clauses, they were classified as equity. As of the Merger, Vringo’s outstanding warrants also included certain derivative warrants, at an exercise price of $0.94 per share, with a remaining contractual term of 2.44 years (the “Special Bridge Warrants” and the “Conversion Warrants”); certain derivative warrants, at an exercise price of $1.76 per share, with a remaining contractual term of 4.55 years (the “Preferential Reload Warrants”); and certain warrants, classified as equity, at an exercise price of $1.76 per share, with a remaining contractual term of 4.55 years (the “non-Preferential Reload Warrants”). In addition, warrants that were issued upon completion of Vringo’s public offering in June 2010 were also outstanding upon the Merger. These warrants are publicly traded and are exercisable until June 21, 2015, at an exercise price of $5.06 per share.

On October 12, 2012, the Company entered into an agreement with certain of its warrant holders, pursuant to which, on October 23 and 24, 2012, the holders exercised in cash 3,721,062 of their outstanding warrants, with an exercise price of $1.76 per share. In exchange, the Company granted such warrant holders unregistered warrants of the Company to purchase an aggregate of 3,000,000 shares of the Company’s common stock, par value $0.01 per share, at an exercise price of $5.06 per share (the “October 2012 Warrants”). The contractual life of these warrants is 2.66 years and because such warrants do not bear any down-round protection clauses they were classified as equity instruments. The October 2012 Warrants were valued using the following assumptions: volatility: 68.1%, share price: $3.50-$3.77, risk free interest rate: 0.724% and dividend yield: 0%. The fair value of warrants issued in exchange for the exercise of the Company’s derivative warrants was accounted for as an inducement, therefore an amount of $2,883 was recorded as a non-operating expense during the year ended December 31, 2012.

As part of the issuance of the October 2012 Warrants, the down-round protection clause in 2,173,852 then outstanding Series 1 Warrants was removed. Because such warrants were no longer subject to down-round protection they were re-measured at fair value and classified as equity instruments. The overall impact of the removal of the down-round warrant protection, which was not material, was recorded during the year ended December 31, 2013. As a result, during the year ended December 31, 2013, the Company recorded an additional non-operating expense of $1,617, and re-classified $3,918 from derivative liabilities on account of warrants to stockholders’ equity.

On June 19, 2014, the Company entered into agreements with certain of its warrant holders, pursuant to which the warrant holders exercised for cash 5,697,227 of their outstanding Series 1 and Series 2 warrants, with an exercise price of $1.76 per share. The Company granted such warrant holders unregistered warrants of the Company to purchase an aggregate of 5,412,366 shares of the Company’s common stock, par value $0.01 per share, at an exercise price of $5.06 per share (the “June 2014 Warrants”). The June 2014 Warrants expire on June 21, 2015 and because such warrants do not bear any down-round protection clauses, they are classified as equity instruments. As a result of these transactions, the Company received $10,027 of proceeds.

The June 2014 Warrants were valued on the grant date (June 20, 2014) using the following assumptions: volatility: 40.05%, stock price: $3.33, risk free interest rate: 0.15% and dividend yield: 0%. The new warrants issued in connection with the exercise of warrants that were classified as liabilities were accounted for as an inducement and therefore an amount of $65, which is based on the fair value of the new warrants, was recorded as a non-operating expense during the second quarter of 2014. The new warrants issued in connection with the exercise of warrants that were classified as equity, which were fair valued at $611, were recorded as equity.

The below is a summary of the Company’s outstanding warrants as of December 31, 2014:

	No. outstanding		No. outstanding classified as equity		No. outstanding classified as liabilities*		Exercise price		Remaining contractual life
Series 1 Warrants		1,490,250		64,621		1,425,629	$	1.76	2.55 years
Series 2 Warrants		1,943,523		1,943,523		—	$	1.76	2.55 years
Conversion Warrants		14,492		—		14,492	$	0.94	0.48 years
Reload Warrants		758,023		597,414		160,609	$	1.76	2.10 years
IPO Warrants		4,784,000		4,784,000		—	$	5.06	0.48 years
October 2012 Warrants		3,000,000		3,000,000		—	$	5.06	0.48 years
June 2014 Warrants		5,412,366		5,412,366		—	$	5.06	0.48 years
Outstanding at December 31, 2014		17,402,654		15,801,924		1,600,730

* These warrants bear down-round protection clauses and as a result, they are classified as derivative liabilities and recorded at fair value.

Revenue from Settlements and Licensing Agreements

12 Months Ended

Dec. 31, 2014

Revenue from Settlement and Licensing Agreement [Abstract]

Revenue from Settlement and Licensing Agreement

Note 12. Revenue from Settlements and Licensing Agreements

On May 30, 2013, the Company’s subsidiary entered into a settlement and license agreement with Microsoft Corporation to resolve its patent litigation pending in the U.S. District Court for the Southern District of New York (I/P Engine, Inc. v. Microsoft Corporation, Case No. 1:13-cv-00688 (SDNY)). According to the agreement, Microsoft Corporation paid the Company $1,000 and agreed to pay 5% of any future amount Google pays for its use of the patents acquired from Lycos. The parties also agreed to a limitation on Microsoft Corporation's total liability, which would not impact the Company unless the amounts received from Google substantially exceed the judgment previously awarded. In addition, the parties also entered into a patent assignment agreement, pursuant to which Microsoft Corporation assigned six patents to I/P Engine. The assigned patents relate to telecommunications, data management, and other technology areas.

On April 28, 2014, the Company entered into a confidential agreement with Tyco that resolved all litigation pending between the parties.

On October 1, 2014, the Company entered into a confidential agreement with Belkin that resolved all litigation pending between the parties.

Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Note 13. Income Taxes

For the years ended December 31, 2014, 2013 and 2012, loss from continuing operations before taxes consists of the following:

	2014		2013		2012
Domestic	$	(108,828)	$	(41,204)	$	(17,673)
Foreign		(394)		(544)		(736)
	$	(109,222)	$	(41,748)	$	(18,409)

There was no income tax expense attributable to continuing operations for the years ended December 31, 2014, 2013 and 2012. Income tax expense attributable to discontinued operations for the years ended December 31, 2014, 2013 and 2012 consisted of the following:

	2014		2013		2012
Foreign
Current	$	(246)	$	(245)	$	(112)
Deferred		—		(12)		57
	$	(246)	$	(257)	$	(55)

Income tax expense attributable to continuing operations differed from the amounts computed by applying the applicable U.S. federal income tax rate to loss from continuing operations before taxes on income as a result of the following:

	For the year ended December 31,
	2014			2013			2012
Loss from continuing operations before taxes on income	$	(109,222)		$	(41,748)		$	(18,409)
Tax rate		35	%		35	%		35	%

Computed "expected" tax benefit		38,228			14,612			6,443
Change in valuation allowance		(13,864)			(10,398)			(7,461)
Nondeductible expenses		(25,070)			(6,812)			(15)
State and local income tax, net of federal income tax expense		793			2,714			1,197
Other items		(87)			(116)			(164)
Income tax expense attributable to continuing operations	$	—		$	—		$	—

The tax effects of temporary differences which give rise to deferred income tax assets and liabilities at December 31, 2014 and 2013 are as follows:

	December 31,
	2014		2013
Deferred income tax assets:
Net operating loss carryforwards	$	43,558	$	29,918
Stock-based compensation		4,789		8,104
Impairment of patents and other		341		7
Total gross deferred income tax assets		48,688		38,029

Less:
Valuation allowance		(48,688)		(37,758)
Deferred income tax liability for acquired technology		—		(264)

Net deferred income tax assets	$	—	$	7

The Company assesses the need for a valuation allowance related to its deferred income tax assets by considering whether it is more likely than not that some portion or all of the deferred income tax assets will not be realized. A valuation allowance has been recorded against the Company’s deferred income tax assets, as it is in the opinion of management that it is more likely than not that the net operating loss carryforwards ("NOL") will not be utilized in the foreseeable future. The valuation allowance will be reduced when and if the Company determines that the deferred income tax assets are more likely than not to be realized. The following table presents the changes to valuation allowance during the periods presented:

As of December 31, 2011	$	1,231
Charged to cost and expenses		12,240
Acquisitions*		10,803
As of December 31, 2012	$	24,274
Charged to cost and expenses – continuing operations		10,398
Charged to cost and expenses – discontinued operations		3,086
As of December 31, 2013	$	37,758
Charged to cost and expenses – continuing operations		13,864
Charged to cost and expenses – discontinued operations		299
Return to provision true-up and other		(3,233)
As of December 31, 2014	$	48,688

* The NOL amounts are presented before Internal Revenue Code, Section 382 limitations.

As of December 31, 2014, the Company’s estimated aggregate total net tax loss carryforwards NOL was approximately $117,000 for U.S. federal, state and local purposes expiring 20 years from the respective tax years to which they relate. The Company has NOL beginning in 2006. The Tax Reform Act of 1986 imposed substantial restrictions on the utilization of NOL and tax credits in the event of an ownership change of a corporation. Thus, the Company’s ability to utilize all such NOL and credit carryforwards may be limited.

The Company filed its tax returns in the U.S. federal jurisdiction, as well as in various state and local jurisdictions. Vringo, Inc. has open tax years for 2010 through 2014. As of December 31, 2014, all tax years for the Company’s subsidiary Innovate/Protect are still open. The Israeli subsidiary files its income tax returns in Israel. As of December 31, 2014, the Israeli subsidiary has open tax years for 2010 through 2014.

The Company did not have any material unrecognized tax benefits as of December 31, 2014. The Company does not expect to record any additional material provisions for unrecognized tax benefits within the next year.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies [Abstract]

Commitments and Contingencies

Note 14. Commitments and Contingencies

Litigation and legal proceedings

The Company retains the services of professional service providers, including law firms that specialize in intellectual property licensing, enforcement and patent law. These service providers are often retained on an hourly, monthly, project, contingent or a blended fee basis. In contingency fee arrangements, a portion of the legal fee is based on predetermined milestones or the Company’s actual collection of funds. The Company accrues contingent fees when it is probable that the milestones will be achieved and the fees can be reasonably estimated.

The Company’s subsidiaries have filed patent infringement lawsuits against the subsidiaries of ZTE and its subsidiaries in the United Kingdom, France, Germany, Netherlands, Australia, India, Brazil, Malaysia, and Romania, and against ASUS and its subsidiaries in Germany, Spain and India. In such jurisdictions, an unsuccessful plaintiff may be required to pay a portion of the other party’s legal fees. In addition, the Company may be required to grant additional written commitments, as necessary, in connection with its commenced proceedings against ZTE and its subsidiaries in various countries. It should be noted, however, that if the Company were successful on any court applications or the entirety of any litigation, the defendants may be responsible for a substantial portion of the Company’s legal fees.

Pursuant to negotiation with ZTE’s United Kingdom subsidiary, the Company made two written commitments, in November 2012 and May 2013, representing payment should a liability by Vringo Infrastructure arise as a result of the two cases it has filed. Each of the cases filed include three patents which the Company has alleged are infringed by ZTE. The defendants estimated the total possible liability to be no more than approximately $2,900 for each case.

In March 2014, the Company withdrew its claim to one of the patents included in the first case against ZTE’s United Kingdom subsidiary.

In November 2014, with respect to another patent included in the first case, the Court found that Vringo’s patent is valid as amended and infringed by ZTE.

On February 17, 2015, in order to streamline and expedite the further phases of its litigation against ZTE’s United Kingdom subsidiary and following information received from ZTE that it intends to only sell equipment in the United Kingdom that is not fully compliant with standards of the European Telecommunications Standards Institute (“ETSI”), the Company withdrew its infringement claims against ZTE on three of the four remaining patents-in-suit in the UK suit. The Company’s claim for infringement of the remaining patent in the UK is still pending, and is scheduled to be heard by the Court in a trial starting on June 8, 2015. Consequently, the Company is liable for the net amount of ZTE's legal fees which will be determined and paid at the end of the case. As of December 31, 2014, the Company recorded its best estimate of this liability, which is presented in Other liabilities included in the consolidated balance sheet as of December 31, 2014.

On September 13, 2013 and January 28, 2014, Vringo Germany filed two suits in the Regional Court of Düsseldorf, alleging infringement of two European patents by ZTE’s German subsidiary. Those cases were heard by the Court on November 27, 2014. On January 22, 2015, the Court issued its judgment, finding that ZTE does not infringe either patent. On February 17, 2015, Vringo filed notices of appeal for each patent. The appeal process is anticipated to take at least one year.

On May 5, 2014, the Company deposited a bond of €1,000 (approximately $1,216 as of December 31, 2014) to enforce an injunction against ZTE in Germany. Should the injunction be successfully overturned on appeal, the Company may be obligated to compensate ZTE for any damages allegedly suffered as a result of the enforcement of the injunction, which would be ascertained through separate damages proceedings. Should the judgment which granted the injunction be affirmed on appeal, however, the amount paid as security would be returnable to the Company in full. The Company has assessed the likelihood of the injunction being successfully overturned on appeal as remote.

In Brazil, as a condition of the relief requested, the Company deposited R$2,020 on April 17, 2014 (approximately $752 as of December 31, 2014), as a surety against the truth of allegations contained in the complaint. This deposit is returnable at the end of the litigation unless ZTE is the prevailing party and proves that actual material damages were suffered while the requested relief was in place. The Company has assessed the likelihood of ZTE doing so as remote.

The bond deposit in Germany and the surety deposit in Brazil are included in Deposits with courts in the consolidated balance sheet as of December 31, 2014.

Leases

In July 2012, the Company signed a rental agreement for its corporate executive office in New York for an annual rental fee of approximately $137 (subject to certain adjustments) which was to expire in September 2015. However, in January 2014, the Company entered into an amended lease agreement with the landlord for a different office space within the same building. The initial annual rental fee for this new office is approximately $403 (subject to certain future escalations and adjustments) beginning when the new office space was available on August 1, 2014. This lease will expire in October 2019. Rent expense for operating leases for the years ended December 31, 2014, 2013 and 2012 were $366, $230, and $120, respectively.

Future minimum lease payments under non-cancelable operating leases for office space, as of December 31, 2014, are as follows:

Year ending December 31,	Amount
2015	$	370
2016		403
2017		407
2018		416
2019		347
Total	$	1,943

Quarterly Financial Information (unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information (unaudited)

Note 15. Quarterly Financial Information (unaudited)

The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2014 and 2013:

2014	First		Second		Third		Fourth

Revenue	$	250	$	800	$	150	$	225
Operating loss from continuing operations		(9,825)		(10,353)		(15,196)		(75,822)
Loss from continuing operations		(10,900)		(10,049)		(12,376)		(75,897)
Loss from discontinued operations		(209)		—		—		(246)
Net loss		(11,109)		(10,049)		(12,376)		(76,143)

Net loss per share	$	(0.13)	$	(0.12)	$	(0.13)	$	(0.81)
Diluted net loss per share	$	(0.13)	$	(0.12)	$	(0.16)	$	(0.82)

2013	First		Second		Third		Fourth

Revenue	$	—	$	1,100	$	—	$	—
Operating loss from continuing operations		(10,499)		(8,755)		(10,519)		(11,004)
Loss from continuing operations		(10,859)		(10,229)		(9,849)		(10,811)
Loss from discontinued operations		(1,105)		(711)		(711)		(8,158)
Net loss		(11,964)		(10,940)		(10,560)		(18,969)

Net loss per share	$	(0.15)	$	(0.13)	$	(0.13)	$	(0.23)
Diluted net loss per share	$	(0.15)	$	(0.13)	$	(0.13)	$	(0.23)

Risks and Uncertainties

12 Months Ended

Dec. 31, 2014

Risks and Uncertainties [Abstract]

Risks and Uncertainties

Note 16. Risks and Uncertainties

(a)

New legislation, regulations or rulings that impact the patent enforcement process or the rights of patent holders could negatively affect the Company’s current business model. For example, limitations on the ability to bring patent enforcement claims, limitations on potential liability for patent infringement, lower evidentiary standards for invalidating patents, increases in the cost to resolve patent disputes and other similar developments could negatively affect the Company’s ability to assert its patent or other intellectual property rights.

(b)

The patents owned by the Company are presumed to be valid and enforceable. As part of the Company’s ongoing legal proceedings, the validity and/or enforceability of its patents is often challenged in a court or an administrative proceeding. On August 15, 2014, the Federal Circuit reversed a judgment of the United States District Court for the Eastern District of Virginia by holding that the asserted claims of the patents-in-suit in I/P Engine's litigation against AOL Inc., Google Inc. et al. are invalid for obviousness. Additionally, during the second half of 2014, the Patent Re-Examination Board of the State Intellectual Property Office of the People’s Republic of China held that seven of the Company's Chinese patents are invalid. The Company is appealing these decisions. The Company’s other patents have not been declared to be invalid or unenforceable to date.

	(c)	Financial instruments which potentially subject the Company to significant concentrations of credit risk consist principally of cash and cash equivalents. The Company maintains its cash and cash equivalents with various major financial institutions. These major financial institutions are located in the United States and the Company’s policy is designed to limit exposure to any one institution.
	(d)	A portion of the Company’s expenses are denominated in foreign currencies. If the value of the U.S. dollar weakens against the value of these currencies, there will be a negative impact on the Company’s operating costs. In addition, the Company is subject to the risk of exchange rate fluctuations to the extent it holds monetary assets and liabilities in these currencies.
	(e)	The Company may choose to raise additional funds in connection with any potential acquisition of patent portfolios or other intellectual property assets or operating businesses. In addition, the Company may also need additional funds to respond to business opportunities and challenges, including its ongoing operating expenses, protection of its assets, development of new lines of business and enhancement of its operating infrastructure. While the Company may need to seek additional funding, it may not be able to obtain financing on acceptable terms, or at all. If the Company is unable to obtain additional funding on a timely basis, it may be required to curtail or terminate some of its business plans.

Accounting and Reporting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Basis of presentation and principles of consolidation

(a) Basis of presentation and principles of consolidation

The accompanying consolidated financial statements have been prepared in accordance with U.S. GAAP. All significant intercompany balances and transactions have been eliminated in consolidation.

Use of estimates

(b) Use of estimates

Translation into U.S. dollars

(c) Translation into U.S. dollars

Cash and cash equivalents

(d) Cash and cash equivalents

Derivative instruments

(e) Derivative instruments

Intangible assets

(f) Intangible assets

Goodwill

(g) Goodwill

Property and equipment

(h) Property and equipment

The following table summarizes the estimate useful lives of the Company’s property and equipment categories:

		No. of Years
Office furniture and equipment		3
Computers and related equipment		2-3
Leasehold improvements		Shorter of the useful life of the asset or the term of the lease

Revenue recognition

(i) Revenue recognition

Operating legal costs

(j) Operating legal costs

Stock-based compensation

(k) Stock-based compensation

Income taxes

(l) Income taxes

Net loss per common share

(m) Net loss per common share

Commitments and contingencies

(n) Commitments and contingencies

Fair value measurements

(o) Fair value measurements

Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

Recently Issued Accounting Pronouncements

(p) Recently issued accounting pronouncements

Reclassification

(q) Reclassification

Certain balances have been reclassified to conform to presentation requirements including discontinued operations.

Accounting and Reporting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property and equipment

The following table summarizes the estimate useful lives of the Company’s property and equipment categories:

		No. of Years
Office furniture and equipment		3
Computers and related equipment		2-3
Leasehold improvements		Shorter of the useful life of the asset or the term of the lease

Net Loss per Common Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share, Basic and Diluted [Abstract]

Computation of Net Loss per Common Share

The table below presents the computation of basic and diluted net losses per common share:

	For the year ended December 31,
	2014		2013		2012
Basic Numerator:
Loss from continuing operations attributable to shares of common stock	$	(109,222)	$	(41,748)	$	(18,409)
Loss from discontinued operations attributable to shares of common stock		(455)	$	(10,685)	$	(2,432)
Net loss attributable to shares of common stock	$	(109,677)	$	(52,433)	$	(20,841)
Basic Denominator:
Weighted average number of shares of common stock outstanding during the period		89,640,330		83,097,667		38,949,305
Weighted average number of penny stock options		—		104,024		161,871
Basic common stock shares outstanding		89,640,330		83,201,691		39,111,176
Basic loss per common stock share from continuing operations	$	(1.22)	$	(0.50)	$	(0.47)
Basic loss per common stock share from discontinued operations		(0.01)	$	(0.13)	$	(0.06)
Basic net loss per common stock share	$	(1.23)	$	(0.63)	$	(0.53)

Diluted Numerator:
Net loss from continuing operations attributable to shares of common stock	$	(109,222)	$	(41,748)	$	(18,409)
Increase in net loss attributable to derivative warrants	$	(2,201)	$	(59)	$	(4,701)
Diluted net loss from continuing operations attributable to shares of common stock	$	(111,423)	$	(41,807)	$	(23,110)
Diluted net loss from discontinued operations attributable to shares of common stock	$	(455)	$	(10,685)	$	(2,432)
Diluted net loss attributable to shares of common stock	$	(111,878)	$	(52,492)	$	(25,542)

Diluted Denominator:
Basic common stock shares outstanding		89,640,330		83,201,691		39,111,176
Shares assumed issued upon exercise of derivative warrants during the period		849,410		79,182		2,553,500
Diluted common stock shares outstanding		90,489,740		83,280,873		41,664,676
Diluted loss per common stock share from continuing operations	$	(1.23)	$	(0.50)	$	(0.55)
Diluted loss per common stock share from discontinued operations	$	(0.01)	$	(0.13)	$	(0.06)
Diluted net loss per common stock share	$	(1.24)	$	(0.63)	$	(0.61)

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:
Both vested and unvested options to purchase an equal number of shares of common stock of the Company		8,052,345		10,407,157		8,957,054
Unvested RSU to issue an equal number of shares of common stock of the Company		1,196,357		2,161,402		3,125,000
Common stock shares granted, but not yet vested		—		30,046		92,903
Warrants to purchase an equal number of shares of common stock of the Company		16,553,243		18,261,031		3,787,628
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share		25,801,945		30,859,636		15,962,585

Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2014

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents

	As of December 31,
	2014		2013
Cash denominated in U.S. dollars	$	2,897	$	24,628
Money market funds denominated in U.S. dollars		13,085		3,184
Cash in currency other than U.S. dollars		41		5,774
	$	16,023	$	33,586

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

	As of December 31,
	2014		2013
Computers, software and equipment	$	207	$	171
Furniture and fixtures		201		83
Leasehold improvements		202		110
		610		364
Less: accumulated depreciation		(389)		(134)
	$	221	$	230

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Finite-Lived Intangible Assets

The following table provides information regarding the Company’s intangible assets, which consist of its patents:

	December 31, 2014		December 31, 2013		Weighted average amortization period (years)
Patents		28,213		28,213		8.9
Less: accumulated amortization		(9,233)		(5,465)
Less: impairment of patents		(1,355)		—
	$	17,625	$	22,748

Finite-Lived Intangible Assets, Future Amortization Expense

Estimated amortization expense for each of the five succeeding years, of the Company’s patents owned at December 31, 2014 is as follows:

Year ending December 31,	Amount
2015	$	3,195
2016		2,878
2017		2,806
2018		2,783
2019		2,478
2020 and thereafter		3,485
	$	17,625

Business Combination (Tables)

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Components of Recognized Identified Assets Acquired and Liabilities Assumed

The total purchase price of $75,654 was allocated to the assets acquired and liabilities assumed as follows. Registration and issuance cost, in the total amount of $463, was recorded against the additional paid-in capital.

	Allocation of purchase
	price
Cash and cash equivalents	$	3,326
Working capital (excluding cash and cash equivalents)		(740)
Long-term deposit		8
Property and equipment		124
Acquired technology		10,133
Goodwill		65,965
Total assets acquired, net		78,816

Fair value of outstanding warrants granted by Legal Parent prior to the Merger, classified as a long-term derivative liability		(3,162)
Total liabilities assumed, net		(3,162)
		75,654
Measurement of consideration:
Fair value of vested stock options granted to employees, management and consultants, classified as equity		7,364
Fair value of outstanding warrants granted by the Legal Parent prior to the Merger, classified as equity		10,079
Fair value of Vringo shares of common stock and vested $0.01 options granted to employees, management and consultants		58,211
Total estimated purchase price	$	75,654

Discontinued Operations and Assets Held For Sale (Tables)

12 Months Ended

Dec. 31, 2014

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures

The following table presents the carrying amounts of the major classes of assets from discontinued mobile social application in the Company’s consolidated balance sheet as of December 31, 2013. As of December 31, 2013, there were no liabilities classified as held for sale and no liabilities were transferred to InfoMedia upon Closing.

	As of December 31,
	2013
Cash	$	48
Accounts receivable		102
Goodwill at carrying amount of $208, net of $208 loss on impairment		—
Acquired technology at carrying amount of $10,133 (Note 7), net of $2,451 accumulated amortization and $7,045 loss on impairment		637
Total assets held for sale	$	787

The following tables represent the components of operating results from discontinued operations, as presented in the consolidated statements of operations:

	As of December 31,
	2014		2013		2012
Revenue	$	37	$	224	$	269
Operating expenses		(266)		(3,334)		(2,666)
Loss on impairment		—		(7,253)		—
Operating loss		(229)		(10,363)		(2,397)
Non-operating income (expense)		20		(65)		20
Loss before taxes on income		(209)		(10,428)		(2,377)
Income tax expense		(246)		(257)		(55)
Loss from discontinued operations	$	(455)	$	(10,685)	$	(2,432)

- Definition

Tabular disclosure of disposal groups, which may include the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the classification and carrying value of the assets and liabilities comprising the disposal group, and the segment in which the disposal group was reported. Also may include the amount of adjustments to amounts previously reported in discontinued operations such as resolution of contingencies arising from the disposal transaction or the operations of the component prior to disposal.

+ References + Details

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents the placement in the fair value hierarchy of liabilities measured at fair value on a recurring basis as of December 31, 2014 and 2013:

			Fair value measurement at reporting date using
			Quoted prices in
			active markets		Significant other		Significant
			for identical		observable		unobservable
Derivative warrant liabilities	Balance		assets (Level 1)		inputs (Level 2)		inputs (Level 3)
As of December 31, 2014	$	175		—		—	$	175
As of December 31, 2013	$	4,083		—		—	$	4,083

Assets and Liabilities Measured at Fair Value on Nonrecurring Basis

Fair value measurement at reporting date using

Quoted prices in

active markets

Significant other

Significant

for identical

observable

unobservable

Balance

assets (Level 1)

inputs (Level 2)

inputs (Level 3)

Assets held for sale

787

150

—

637

Changes in Liabilities Measured at Fair Value Using Significant Unobservable Inputs

The following table summarizes the changes in the Company’s liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended December 31, 2014, 2013 and 2012:

	Level 3
Balance at January 1, 2012	$	—
Derivative warrants issued to I/P’s shareholders in connection with the Merger		21,954
Fair value of derivative warrants issued		3,162
Fair value adjustment, prior to exercise of warrants, included in consolidated statement of operations		156
Exercise of derivative warrants		(10,657)
Fair value adjustment at end of period, included in consolidated statement of operations		(7,003)
Balance at December 31, 2012		7,612
Net impact of removal of down-round clause in Series 1 Warrant		(2,300)
Fair value adjustment, prior to exercise of warrants, included in consolidate statement of operations		9
Exercise of derivative warrants		(808)
Fair value adjustment at end of period, included in consolidated statement of operations		(430)
Balance at December 31, 2013	$	4,083
Fair value adjustment, prior to exercise of warrants, included in consolidated statement of operations		56
Exercise of derivative warrants		(1,707)
Fair value adjustment at end of period, included in consolidated statement of operations		(2,257)
Balance at December 31, 2014		175

Fair Value Measurements Based Upon Sensitivity and Nature of Inputs

December 31, 2014:

Description	Valuation technique	Unobservable inputs	Range
Conversion Warrants, derivative Reload Warrants and	Black-Scholes-Merton and the	Volatility	56.55% – 77.06	%
derivative Series 1 Warrants	Monte-Carlo models	Risk free interest rate	0.13% – 0.87	%
		Expected term, in years	0.48 – 2.55
		Dividend yield	0	%
		Probability and timing of down-round triggering event	50% occurrence in June 2015

December 31, 2013:

Description	Valuation technique	Unobservable inputs	Range
Special Bridge Warrants, Conversion Warrants, derivative	Black-Scholes-Merton and the	Volatility	46.85% – 52.63	%
Reload Warrants and derivative Series 1 Warrants	Monte-Carlo models	Risk free interest rate	0.16% – 1.11	%
		Expected term, in years	0.99 – 3.55
		Dividend yield	0	%
		Probability and timing of down-round triggering event	5% occurrence in December 2014

Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock Options and Restricted Stock Units Activity

The following tables summarize information about stock options and RSU activity during the year ended December 31, 2014:

	RSU				Options
	No. of RSU		Weighted average grant date fair value		No. of options		Weighted average exercise price		Exercise price range	Weighted average grant date fair value
Outstanding at January 1, 2014		2,161,403	$	3.61		10,457,159	$	3.23	$0.01 – $5.50	$	2.50
Granted		—		—		1,300,000	$	3.77	$1.18 – $4.10	$	2.04
Vested/Exercised		(959,421)	$	3.59		(1,126,815)	$	1.92	$0.01 – $3.72	$	1.31
Forfeited		(5,625)	$	3.72		(2,083,333)	$	3.53	$2.96 – $3.72	$	2.49
Expired		—		—		(494,666)	$	4.28	$0.96 – $5.50	$	1.94
Outstanding at December 31, 2014		1,196,357	$	3.64		8,052,345	$	3.36	$0.96 – $5.50	$	2.24
Exercisable at December 31, 2014		—		—		6,172,691	$	3.36	$0.96 – $5.50

Nonvested Restricted Stock Units Activity

	Non-vested stock options:				Non-vested RSU:
	No. of options		Weighted average grant date fair value		No. of RSUs		Weighted average grant date fair value
Balance at January 1, 2014		4,593,680	$	2.36		2,161,403	$	3.61
Granted		1,300,000	$	3.77		—	$	—
Vested		(3,343,193)	$	2.39		(959,421)	$	3.59
Forfeited		(670,833)	$	2.30		(5,625)	$	3.72
Balance at December 31, 2014		1,879,654	$	2.21		1,196,357	$	3.64

Employee and Non-Employee Stock Options

The following table summarizes information about employee and non-employee stock options outstanding as of December 31, 2014:

Exercise price		No. options outstanding	No. options exercisable	Weighted average remaining contractual life (years)
$	0.01-1.00	61,178	61,178	6.94
$	1.01-2.00	845,667	754,001	8.22
$	2.01-3.00	585,000	337,082	8.53
$	3.01-4.00	5,323,000	4,066,263	8.30
$	4.01-5.00	1,025,000	741,667	9.15
$	5.01-6.00	212,500	212,500	5.48
		8,052,345	6,172,691

Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Options Granted

The following table illustrates the stock options granted during the year ended December 31, 2014. There were no RSU granted during the year ended December 31, 2014.

Title

Grant date

No. of
options

Exercise
price

Fair market
value at
grant date

Vesting terms

Assumptions used in
Black-Scholes option pricing
model

Directors, Management, and Employees

January - December 2014

1,300,000

$ 1.18 - $ 4.10

$ 0.65 - $ 2.32

Over 1 year for

Volatility: 57.75 % – 62.00%

Directors; Over 3 years

Risk free interest rate: 1.82% - 2.06%

for Management and

Expected term, in years: 5.31-5.81

Employees

Dividend yield: 0.00%

Warrants (Tables)

12 Months Ended

Dec. 31, 2014

Warrants and Rights Note Disclosure [Abstract]

Schedule Of Changes In Warrants Activity

The following table summarizes information about warrant activity during the year ended December 31, 2014:

	No. of warrants		Weighted average exercise price		Exercise price range
Outstanding at January 1, 2014		18,427,478	$	3.15		$0.94 – $5.06
Granted		5,412,366	$	5.06	$	5.06
Exercised		(6,415,992)	$	1.76	$	1.76
Expired		(21,198)	$	0.94	$	0.94
Outstanding at December 31, 2014		17,402,654	$	4.26		$0.94 – $5.06

Schedule Of Warrants Outstanding

The below is a summary of the Company’s outstanding warrants as of December 31, 2014:

	No. outstanding		No. outstanding classified as equity		No. outstanding classified as liabilities*		Exercise price		Remaining contractual life
Series 1 Warrants		1,490,250		64,621		1,425,629	$	1.76	2.55 years
Series 2 Warrants		1,943,523		1,943,523		—	$	1.76	2.55 years
Conversion Warrants		14,492		—		14,492	$	0.94	0.48 years
Reload Warrants		758,023		597,414		160,609	$	1.76	2.10 years
IPO Warrants		4,784,000		4,784,000		—	$	5.06	0.48 years
October 2012 Warrants		3,000,000		3,000,000		—	$	5.06	0.48 years
June 2014 Warrants		5,412,366		5,412,366		—	$	5.06	0.48 years
Outstanding at December 31, 2014		17,402,654		15,801,924		1,600,730

* These warrants bear down-round protection clauses and as a result, they are classified as derivative liabilities and recorded at fair value.

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References + Details

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

For the years ended December 31, 2014, 2013 and 2012, loss from continuing operations before taxes consists of the following:

	2014		2013		2012
Domestic	$	(108,828)	$	(41,204)	$	(17,673)
Foreign		(394)		(544)		(736)
	$	(109,222)	$	(41,748)	$	(18,409)

Schedule of Components of Income Tax Expense (Benefit)

	2014		2013		2012
Foreign
Current	$	(246)	$	(245)	$	(112)
Deferred		—		(12)		57
	$	(246)	$	(257)	$	(55)

Schedule of Effective Income Tax Rate Reconciliation

	For the year ended December 31,
	2014			2013			2012
Loss from continuing operations before taxes on income	$	(109,222)		$	(41,748)		$	(18,409)
Tax rate		35	%		35	%		35	%

Computed "expected" tax benefit		38,228			14,612			6,443
Change in valuation allowance		(13,864)			(10,398)			(7,461)
Nondeductible expenses		(25,070)			(6,812)			(15)
State and local income tax, net of federal income tax expense		793			2,714			1,197
Other items		(87)			(116)			(164)
Income tax expense attributable to continuing operations	$	—		$	—		$	—

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences which give rise to deferred income tax assets and liabilities at December 31, 2014 and 2013 are as follows:

	December 31,
	2014		2013
Deferred income tax assets:
Net operating loss carryforwards	$	43,558	$	29,918
Stock-based compensation		4,789		8,104
Impairment of patents and other		341		7
Total gross deferred income tax assets		48,688		38,029

Less:
Valuation allowance		(48,688)		(37,758)
Deferred income tax liability for acquired technology		—		(264)

Net deferred income tax assets	$	—	$	7

Summary of Valuation Allowance

The following table presents the changes to valuation allowance during the periods presented:

As of December 31, 2011	$	1,231
Charged to cost and expenses		12,240
Acquisitions*		10,803
As of December 31, 2012	$	24,274
Charged to cost and expenses – continuing operations		10,398
Charged to cost and expenses – discontinued operations		3,086
As of December 31, 2013	$	37,758
Charged to cost and expenses – continuing operations		13,864
Charged to cost and expenses – discontinued operations		299
Return to provision true-up and other		(3,233)
As of December 31, 2014	$	48,688

* The NOL amounts are presented before Internal Revenue Code, Section 382 limitations.

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies [Abstract]

Future Minimum Lease Payments Under Non Cancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases for office space, as of December 31, 2014, are as follows:

Year ending December 31,	Amount
2015	$	370
2016		403
2017		407
2018		416
2019		347
Total	$	1,943

Quarterly Financial Information (unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information (unaudited)

The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2014 and 2013:

2014	First		Second		Third		Fourth

Revenue	$	250	$	800	$	150	$	225
Operating loss from continuing operations		(9,825)		(10,353)		(15,196)		(75,822)
Loss from continuing operations		(10,900)		(10,049)		(12,376)		(75,897)
Loss from discontinued operations		(209)		—		—		(246)
Net loss		(11,109)		(10,049)		(12,376)		(76,143)

Net loss per share	$	(0.13)	$	(0.12)	$	(0.13)	$	(0.81)
Diluted net loss per share	$	(0.13)	$	(0.12)	$	(0.16)	$	(0.82)

2013	First		Second		Third		Fourth

Revenue	$	—	$	1,100	$	—	$	—
Operating loss from continuing operations		(10,499)		(8,755)		(10,519)		(11,004)
Loss from continuing operations		(10,859)		(10,229)		(9,849)		(10,811)
Loss from discontinued operations		(1,105)		(711)		(711)		(8,158)
Net loss		(11,964)		(10,940)		(10,560)		(18,969)

Net loss per share	$	(0.15)	$	(0.13)	$	(0.13)	$	(0.23)
Diluted net loss per share	$	(0.15)	$	(0.13)	$	(0.13)	$	(0.23)

General (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended		12 Months Ended
	Nov. 06, 2012	Jun. 19, 2014	Jan. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 18, 2014	Dec. 31, 2011
Cost Method Investment Ownership Percentage									8.25%
Royalty Rate	3.50%		20.90%
Supplemental Damages And Prejudgment Interest			$ 17,320
Running Royalty Amount	$ 30,500
Ongoing Royalty Rate			6.50%
Cash				$ 2,897	$ 24,628	$ 2,897	$ 24,628
Average Monthly Cash Spent In Operations						$ 2,365	$ 1,955
Warrants Exercised For Cash		5,697,227
Warrants Exercised For Cash Per Share		$ 1.76
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		5,412,366
Common Stock, Par Or Stated Value Per Share		$ 0.01		$ 0.01	$ 0.01	$ 0.01	$ 0.01
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 5.06
Proceeds from Issuance of Warrants		$ 10,027
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period						1,126,815
Proceeds from Stock Options Exercised						$ 2,160
Stockholders Equity				$ 31,180	$ 114,282	31,180	$ 114,282	$ 148,332		$ 2,865
Goodwill, Impairment Loss				$ 65,757	$ 208	65,757	0	0
Payments For Deposits						$ 2,404	$ 193	$ 46

Accounting and Reporting Policies (Property and Equipment) (Details)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment, Estimated Useful Lives	Shorter of the useful life of the asset or the term of the lease
Office furniture and equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member] \| Computers and related equipment [Member]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] \| Computers and related equipment [Member]
Property, Plant and Equipment, Useful Life	2 years

Accounting and Reporting Policies (Additional Information) (Details)	12 Months Ended
	Dec. 31, 2014
Legal Parents 2006 Option Plans [Member]
Options Contractual Term	6 years
Legal Parents 2012 Option Plans [Member]
Options Contractual Term	10 years

Net Loss per Common Share (Computation of basic and diluted net losses per common share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share Disclosure [Line Items]
Loss from continuing operations attributable to shares of common stock	$ (75,897)	$ (12,376)	$ (10,049)	$ (10,900)	$ (10,811)	$ (9,849)	$ (10,229)	$ (10,859)	$ (109,222)	$ (41,748)	$ (18,409)
Loss from discontinued operations attributable to shares of common stock	(246)	0	0	(209)	(8,158)	(711)	(711)	(1,105)	(455)	(10,685)	(2,432)
Net loss attributable to shares of common stock	$ (76,143)	$ (12,376)	$ (10,049)	$ (11,109)	$ (18,969)	$ (10,560)	$ (10,940)	$ (11,964)	$ (109,677)	$ (52,433)	$ (20,841)
Basic common stock shares outstanding									89,640,330	83,201,691	39,111,176
Basic loss per common stock share from continuing operations									$ (1.22)	$ (0.50)	$ (0.47)
Basic loss per common stock share from discontinued operations									(0.01)	(0.13)	(0.06)
Basic net loss per common stock share	$ (0.81)	$ (0.13)	$ (0.12)	$ (0.13)	$ (0.23)	$ (0.13)	$ (0.13)	$ (0.15)	$ (1.23)	$ (0.63)	$ (0.53)
Diluted common stock shares outstanding									90,489,740	83,280,873	41,664,676
Diluted loss per common stock share from discontinued operations									$ (0.01)	$ (0.13)	$ (0.06)
Diluted net loss per common stock share	$ (0.82)	$ (0.16)	$ (0.12)	$ (0.13)	$ (0.23)	$ (0.13)	$ (0.13)	$ (0.15)	$ (1.24)	$ (0.63)	$ (0.61)
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:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share									25,801,945	30,859,636	15,962,585
Basic Numerator [Member]
Earnings Per Share Disclosure [Line Items]
Loss from continuing operations attributable to shares of common stock									$ (109,222)	$ (41,748)	$ (18,409)
Loss from discontinued operations attributable to shares of common stock									(455)	(10,685)	(2,432)
Net loss attributable to shares of common stock									$ (109,677)	$ (52,433)	$ (20,841)
Basic Denominator [Member]
Earnings Per Share Disclosure [Line Items]
Weighted average number of shares of common stock outstanding during the period									89,640,330	83,097,667	38,949,305
Weighted average number of penny stock options									0	104,024	161,871
Basic common stock shares outstanding									89,640,330	83,201,691	39,111,176
Basic loss per common stock share from continuing operations									$ (1.22)	$ (0.50)	$ (0.47)
Basic loss per common stock share from discontinued operations									(0.01)	(0.13)	(0.06)
Basic net loss per common stock share									$ (1.23)	$ (0.63)	$ (0.53)
Diluted Numerator [Member]
Earnings Per Share Disclosure [Line Items]
Loss from continuing operations attributable to shares of common stock									$ (109,222)	$ (41,748)	$ (18,409)
Increase in net loss attributable to derivative warrants									(2,201)	(59)	(4,701)
Diluted net loss from continued operations attributable to shares of common stock									(111,423)	(41,807)	(23,110)
Diluted net loss from discontinued operations attributable to shares of common stock									(455)	(10,685)	(2,432)
Diluted net loss attributable to shares of common stock									$ (111,878)	$ (52,492)	$ (25,542)
Diluted Denominator [Member]
Earnings Per Share Disclosure [Line Items]
Basic common stock shares outstanding									89,640,330	83,201,691	39,111,176
Shares assumed issued upon exercise of derivative warrants during the period									849,410	79,182	2,553,500
Diluted common stock shares outstanding									90,489,740	83,280,873	41,664,676
Diluted loss per common stock share from continuing operations									$ (1.23)	$ (0.50)	$ (0.55)
Diluted loss per common stock share from discontinued operations									(0.01)	(0.13)	(0.06)
Diluted net loss per common stock share									$ (1.24)	$ (0.63)	$ (0.61)
Both vested and unvested options to purchase an equal number of shares of common stock of the Company [Member]
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:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share									8,052,345	10,407,157	8,957,054
Unvested Restricted Stock Units (“RSU”) [Member]
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:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share									1,196,357	2,161,402	3,125,000
Common stock shares granted, but not yet vested [Member]
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:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share									0	30,046	92,903
Warrants to purchase an equal number of shares of common stock of the Company [Member]
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:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share									16,553,243	18,261,031	3,787,628

Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash and Cash Equivalents [Line Items]
Cash denominated in U.S. dollars	$ 2,897	$ 24,628
Money market funds denominated in U.S. dollars	13,085	3,184
Cash in currency other than U.S. dollars	41	5,774
Cash and Cash Equivalents, at Carrying Value	$ 16,023	$ 33,586	$ 56,960	$ 5,212

Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Computers, software and equipment	$ 207	$ 171
Furniture and fixtures	201	83
Leasehold improvements	202	110
Property, Plant and Equipment, Gross	610	364
Less: accumulated depreciation	(389)	(134)
Property, Plant and Equipment, Net	$ 221	$ 230

Property and Equipment (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Depreciation, Depletion and Amortization	$ 255	$ 87	$ 46

Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Patents		$ 28,213	$ 28,213	$ 28,213
Less: accumulated amortization		(5,465)	(9,233)	(5,465)
Less: impairment of patents	$ (1,355)	(7,045)	(1,355)	0
Finite-Lived Intangible Assets, Net		$ 22,748	$ 17,625	$ 22,748
Weighted average amortization period (years)			8 years 10 months 24 days

Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets, Future Amortization Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
2015	$ 3,195
2016	2,878
2017	2,806
2018	2,783
2019	2,478
2020 and thereafter	3,485
Finite-Lived Intangible Assets, Net	$ 17,625	$ 22,748

Goodwill and Intangible Assets (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended			12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Aug. 31, 2012	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 15, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets							$ 5,123	$ 3,445	$ 1,692
Impairment of Intangible Assets, Finite-lived					$ 1,355	$ 7,045	$ 1,355	0
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					14.00%
Sale of Stock, Price Per Share				$ 0.55	$ 0.95		$ 0.55
Gross Revenue By Portfolio Under Purchase Agreement			$ 22,000
Capitalize Cost Related To Acquisition Of Patents			$ 548
Royalty Payable On Excess Of Acquisition Cost		20.00%	35.00%
Stock Issued During Period, Shares, Acquisitions		160,600
Stock Issued During Period, Value, Acquisitions		$ 750							54,961
Goodwill, Impairment Loss				$ 65,757		$ 208	$ 65,757	0	0
Purchased Additional Patent Portfolio	$ 1,400
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Sale of Stock, Price Per Share					0.95					$ 0.67
Opening Stock Price [Member]
Finite-Lived Intangible Assets [Line Items]
Sale of Stock, Price Per Share										3.18
Closing Stock Price [Member]
Finite-Lived Intangible Assets [Line Items]
Sale of Stock, Price Per Share										$ 0.88
Weighted Average [Member]
Finite-Lived Intangible Assets [Line Items]
Sale of Stock, Price Per Share					1.05
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Sale of Stock, Price Per Share					$ 1.40
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets								1,688	763
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets							$ 3,768	$ 3,445	$ 1,692

Business Combination (Components of Recognized Identified Assets Acquired and Liabilities Assumed) (Details) $ in Thousands	Dec. 31, 2014 USD ($)
Cash and cash equivalents	$ 3,326
Working capital (excluding cash and cash equivalents)	(740)
Long-term deposit	8
Property and equipment	124
Acquired technology	10,133
Goodwill	65,965
Total assets acquired, net	78,816
Fair value of outstanding warrants granted by Legal Parent prior to the Merger, classified as a long-term derivative liability	(3,162)
Total liabilities assumed, net	(3,162)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	75,654
Measurement Of Consideration [Abstract]
Fair value of vested stock options granted to employees, management and consultants, classified as equity	7,364
Fair value of outstanding warrants granted by the Legal Parent prior to the Merger, classified as equity	10,079
Fair value of Vringo shares of common stock and vested $0.01 options granted to employees, management and consultants	58,211
Total estimated purchase price	$ 75,654

Business Combination (Components of Recognized Identified Assets Acquired and Liabilities Assumed) (Parenthetical) (Details)	Dec. 31, 2014 $ / shares
Business Combination [Line Items]
Business Acquisition, Share Price	$ 0.01

Business Combination (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jul. 19, 2012	Dec. 31, 2014	Jun. 19, 2014	Dec. 31, 2013
Business Combination [Line Items]
Common Stock, Par Or Stated Value Per Share		$ 0.01	$ 0.01	$ 0.01
Series A convertible preferred stock converted upon completion of merger, par value	$ 0.01
Aggregate of shares of common stock purchased by warrant			5,412,366
Exercise Price			$ 5.06
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross		1,300,000
Payments of Stock Issuance Costs		$ 463
Measurement of consideration		$ 75,654
Common Stock [Member]
Business Combination [Line Items]
Conversion of Stock, Shares Issued		18,617,569
Common Stock [Member] \| Prior Merger [Member]
Business Combination [Line Items]
Common Stock, Par Or Stated Value Per Share		$ 0.01
Merger agreement [Member]
Business Combination [Line Items]
Common stock converted upon completion of merger, share		6,169,661
Common Stock, Par Or Stated Value Per Share		$ 0.0001
Conversion of Stock, Shares Issued	20,136,445
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross		41,178
Percentage of ownership of outstanding common stock		55.04%
Ownership Percentage Of Common Shares Outstanding Calculated On Fully Diluted Basis		67.61%
Merger agreement [Member] \| Series A Preferred Stock [Member]
Business Combination [Line Items]
Warrants Issued	15,959,838
Aggregate of shares of common stock purchased by warrant	15,959,838
Exercise Price	$ 1.76
Parent Company [Member]
Business Combination [Line Items]
Percentage of ownership of outstanding common stock		44.96%
Ownership Percentage Of Common Shares Outstanding Calculated On Fully Diluted Basis		32.39%
Parent Company [Member] \| Series A Preferred Stock [Member]
Business Combination [Line Items]
Common stock converted upon completion of merger, share	6,673
Common Stock, Par Or Stated Value Per Share	$ 0.0001

Discontinued Operations and Assets Held For Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash		$ 48
Accounts receivable		102
Goodwill at carrying amount of $208, net of $208 loss on impairment		0
Acquired technology at carrying amount of $10,133 (Note 7), net of $2,451 accumulated amortization and $7,045 loss on impairment		637
Total assets held for sale	$ 0	$ 787

Discontinued Operations and Assets Held For Sale (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill, Gross		$ 208		$ 208
Goodwill, Impairment Loss	$ 65,757	208	$ 65,757	0	$ 0
Finite-Lived Intangible Assets, Gross	28,213	28,213	28,213	28,213
Finite-Lived Intangible Assets, Accumulated Amortization	$ 9,233	5,465	$ 9,233	5,465
Acquired Technology [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Finite-Lived Intangible Assets, Gross		10,133		10,133
Finite-Lived Intangible Assets, Accumulated Amortization		2,451		$ 2,451
Impairment of Intangible Assets (Excluding Goodwill)		$ 7,045

Discontinued Operations and Assets Held For Sale (Disposal Group Not Discontinued Operation Income Statement Disclosures) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue									$ 37	$ 224	$ 269
Operating expenses									(266)	(3,334)	(2,666)
Loss on impairment									0	(7,253)	0
Operating loss									(229)	(10,363)	(2,397)
Non-operating income (expense)									20	(65)	20
Loss before taxes on income									(209)	(10,428)	(2,377)
Income tax expense									(246)	(257)	(55)
Loss from discontinued operations	$ (246)	$ 0	$ 0	$ (209)	$ (8,158)	$ (711)	$ (711)	$ (1,105)	$ (455)	$ (10,685)	$ (2,432)

Discontinued Operations and Assets Held For Sale (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 18, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cost Method Investment Ownership Percentage					8.25%
Impairment of Long-Lived Assets to be Disposed of	$ 7,253	$ 0	$ 7,253	$ 0
Infomedia [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cost Method Investment Ownership Percentage					8.25%
Cost Method Investments		$ 787

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Liabilities
Derivative warrant liabilities	$ 175	$ 4,083
Fair Value, Inputs, Level 1 [Member]
Liabilities
Derivative warrant liabilities	0	0
Fair Value, Inputs, Level 2 [Member]
Liabilities
Derivative warrant liabilities	0	0
Fair Value Inputs Level 3 [Member]
Liabilities
Derivative warrant liabilities	$ 175	$ 4,083

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale	$ 0	$ 787
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale		150
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale		0
Fair Value Inputs Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale		$ 637

Fair Value Measurements (Changes in Liabilities Measured at Fair Value Using Significant Unobservable Inputs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Opening balance	$ 4,083	$ 7,612	$ 0
Derivative warrants issued to I/P’s shareholders in connection with the Merger			21,954
Fair value of derivative warrants issued			3,162
Net impact of removal of down-round clause in Series 1 Warrant		(2,300)
Fair value adjustment, prior to exercise of warrants, included in consolidated statement of operations	56	9	156
Exercise of derivative warrants	(1,707)	(808)	(10,657)
Fair value adjustment at end of period, included in consolidated statement of operations	(2,257)	(430)	(7,003)
Closing balance	$ 175	$ 4,083	$ 7,612

Fair Value Measurements (Based Upon Sensitivity and Nature of Inputs) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Dividend yield	0.00%	0.00%
Probability of down-round triggering event	50.00%	5.00%
Timing of down-round triggering event	June 2015	December 2014
Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Volatility	56.55%	46.85%
Risk free interest rate	0.13%	0.16%
Expected term, in years	5 months 23 days	11 months 26 days
Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Volatility	77.06%	52.63%
Risk free interest rate	0.87%	1.11%
Expected term, in years	2 years 6 months 18 days	3 years 6 months 18 days

Stock-based Compensation (Schedule Of Common Stock Options Granted) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Stockholders Equity [Line Items]
No. of options	1,300,000
Exercise price	$ 3.36	$ 3.23
Fair market value at grant date	2.04
Maximum [Member]
Stockholders Equity [Line Items]
Exercise price	5.50	5.50
Minimum [Member]
Stockholders Equity [Line Items]
Exercise price	$ 0.96	$ 0.01
Management Directors and Employees [Member]
Stockholders Equity [Line Items]
Grant Date	January - December 2014
No. of options	1,300,000
Vesting terms	Over 1 year for Directors; Over 3 years for Management and Employees
Volatility Rate, Minimum	57.75%
Volatility Rate, Maximum	62.00%
Risk free interest rate, Minimum	1.82%
Risk free interest rate, Maximum	2.06%
Dividend yield	0.00%
Management Directors and Employees [Member] \| Maximum [Member]
Stockholders Equity [Line Items]
Exercise price	$ 4.10
Fair market value at grant date	$ 2.32
Expected term, in years	5 years 9 months 22 days
Management Directors and Employees [Member] \| Minimum [Member]
Stockholders Equity [Line Items]
Exercise price	$ 1.18
Fair market value at grant date	$ 0.65
Expected term, in years	5 years 3 months 22 days

Stock-based Compensation (Stock options and RSU activity) (Details)	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Stockholders Equity [Line Items]
No. of options, Outstanding at January 1, 2014 \| shares	10,457,159
No. of options, Granted \| shares	1,300,000
No. of options, Vested/Exercised \| shares	(1,126,815)
No. of options, Forfeited \| shares	(2,083,333)
No. of options, Expired \| shares	(494,666)
Outstanding at December 31, 2014 \| shares	8,052,345
No. of options, Exercisable at December 31, 2014 \| shares	6,172,691
Exercise price range, Outstanding at January 1, 2014	$ 3.23
Exercise price range, Granted	3.77
Exercise price range, Vested/Exercised	1.92
Exercise price range, Forfeited	3.53
Exercise price range, Expired	4.28
Exercise price range, Outstanding December 31, 2014	3.36
Exercise price range, Exercisable at December 31, 2014	3.36
Weighted average grant date fair value, Outstanding at January 1, 2014	2.50
Weighted average grant date fair value, Granted	2.04
Weighted average grant date fair value, Vested/Exercised	1.31
Weighted average grant date fair value, Forfeited	2.49
Weighted average grant date fair value, Expired	1.94
Weighted average grant date fair value, Outstanding at December 31, 2014	$ 2.24
Restricted Stock [Member]
Stockholders Equity [Line Items]
Beginning Balance \| shares	2,161,403
No. of RSUs, Granted \| shares	0
No. of RSUs, Vested/Exercised \| shares	(959,421)
No. of RSUs, Forfeited \| shares	(5,625)
No. of RSUs, Expired \| shares	0
Ending Balance \| shares	1,196,357
No. of RSUs, Exercisable at December 31, 2014 \| shares	0
Weighted average grant date fair value Outstanding at January 1, 2014	$ 3.61
Weighted average grant date fair value, Granted	0
Weighted average grant date fair value, Vested/Exercised	3.59
Weighted average grant date fair value, Forfeited	3.72
Weighted average grant date fair value, Expired	0
Weighted average grant date fair value, Outstanding at December 31, 2014	3.64
Weighted average grant date fair value, Exercisable at December 31, 2014	0
Minimum [Member]
Stockholders Equity [Line Items]
Exercise price range, Outstanding at January 1, 2014	0.01
Exercise price range, Granted	1.18
Exercise price range, Vested/Exercised	0.01
Exercise price range, Forfeited	2.96
Exercise price range, Expired	0.96
Exercise price range, Outstanding December 31, 2014	0.96
Exercise price range, Exercisable at December 31, 2014	0.96
Maximum [Member]
Stockholders Equity [Line Items]
Exercise price range, Outstanding at January 1, 2014	5.50
Exercise price range, Granted	4.10
Exercise price range, Vested/Exercised	3.72
Exercise price range, Forfeited	3.72
Exercise price range, Expired	5.50
Exercise price range, Outstanding December 31, 2014	5.50
Exercise price range, Exercisable at December 31, 2014	$ 5.50

Stock-based Compensation (Non-vested options) (Details)	12 Months Ended
Stock-based Compensation (Non-vested options) (Details)	Dec. 31, 2014 $ / shares shares
Employee Stock Option [Member]
Balance at January 1, 2014 \| shares	4,593,680
Granted \| shares	1,300,000
Vested \| shares	(3,343,193)
Forfeited \| shares	(670,833)
Balance at December 31, 2014 \| shares	1,879,654
Weighted average grant date fair value Outstanding at January 1, 2014 \| $ / shares	$ 2.36
Weighted average grant date fair value Granted \| $ / shares	3.77
Weighted average grant date fair value Vested \| $ / shares	2.39
Weighted average grant date fair value Forfeited \| $ / shares	2.30
Weighted average grant date fair value Outstanding at December 31, 2014 \| $ / shares	$ 2.21
Restricted Stock [Member]
Beginning Balance \| shares	2,161,403
Granted \| shares	0
Vested \| shares	(959,421)
Forfeited \| shares	(5,625)
Ending Balance \| shares	1,196,357
Weighted average grant date fair value Outstanding at January 1, 2014 \| $ / shares	$ 3.61
Weighted average grant date fair value, Granted \| $ / shares	0
Weighted average grant date fair value, Vested \| $ / shares	3.59
Weighted average grant date fair value, Forfeited \| $ / shares	3.72
Weighted average grant date fair value, Outstanding at December 31, 2014 \| $ / shares	$ 3.64

Stock-based Compensation (Employee and non-employee stock options outstanding) (Details)	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Based Arrangements With Employees And Non employees [Line Items]
Options outstanding, Number	8,052,345
Options Exercisable, Number	6,172,691
Range One [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 0.01
Exercise price, Upper Limit \| $ / shares	$ 1.00
Options outstanding, Number	61,178
Options Exercisable, Number	61,178
Options Outstanding, Weighted Average Remaining Contractual Term	6 years 11 months 8 days
Range Two [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 1.01
Exercise price, Upper Limit \| $ / shares	$ 2.00
Options outstanding, Number	845,667
Options Exercisable, Number	754,001
Options Outstanding, Weighted Average Remaining Contractual Term	8 years 2 months 19 days
Range Three [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 2.01
Exercise price, Upper Limit \| $ / shares	$ 3.00
Options outstanding, Number	585,000
Options Exercisable, Number	337,082
Options Outstanding, Weighted Average Remaining Contractual Term	8 years 6 months 11 days
Range Four [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 3.01
Exercise price, Upper Limit \| $ / shares	$ 4.00
Options outstanding, Number	5,323,000
Options Exercisable, Number	4,066,263
Options Outstanding, Weighted Average Remaining Contractual Term	8 years 3 months 18 days
Range Five [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 4.01
Exercise price, Upper Limit \| $ / shares	$ 5.00
Options outstanding, Number	1,025,000
Options Exercisable, Number	741,667
Options Outstanding, Weighted Average Remaining Contractual Term	9 years 1 month 24 days
Range Six [Member]
Based Arrangements With Employees And Non employees [Line Items]
Exercise price, Lower Limit \| $ / shares	$ 5.01
Exercise price, Upper Limit \| $ / shares	$ 6.00
Options outstanding, Number	212,500
Options Exercisable, Number	212,500
Options Outstanding, Weighted Average Remaining Contractual Term	5 years 5 months 23 days

Stock-based Compensation (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,793,420
Allocated Share-Based Compensation Expense	$ 10,967	$ 12,093	$ 8,087
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	0	2,558	3,548
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	0	2,445	3,200
Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Aggregate Intrinsic Value	$ 2,363	1,322	2,417
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 3 months
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 7,575
Stock Option [Member]
Stockholders Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$ 7,987	$ 7,807	$ 5,927
Maximum [Member]
Stockholders Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%
Minimum [Member]
Stockholders Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	75.00%
Two Thousand Six Stock Option Plan [Member]
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, New Issues	6,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	9,100,000
Two Thousand Twelve Stock Option Plan [Member]
Stockholders Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	15,600,000

Warrants (Schedule Of Changes In Warrants Activity) (Details) - Warrant [Member]	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Beginning Balance \| shares	18,427,478
Granted \| shares	5,412,366
Exercised \| shares	(6,415,992)
Expired \| shares	(21,198)
Ending Balance \| shares	17,402,654
Outstanding at January 1, 2014, Weighted average exercise price	$ 3.15
Granted, Weighted average exercise price	5.06
Exercised, Weighted average exercise price	1.76
Expired, Weighted average exercise price	0.94
Outstanding at December 31, 2014 , Weighted average exercise price	4.26
Granted, Exercise price range	5.06
Exercised, Exercise price range	1.76
Exercised, Exercise price range	0.94
Maximum [Member]
Outstanding at January 1, 2014, Exercise price range	5.06
Outstanding at December 31, 2014, Exercise price range	5.06
Minimum [Member]
Outstanding at January 1, 2014, Exercise price range	0.94
Outstanding at December 31, 2014, Exercise price range	$ 0.94

Warrants (Schedule of Warrants Outstanding) (Details) - $ / shares

12 Months Ended

Oct. 12, 2012

Dec. 31, 2014

Jun. 19, 2014

Oct. 31, 2012

No. outstanding

17,402,654

2,173,852

No. outstanding classified as equity

15,801,924

No. outstanding classified as liabilities

^[1]

1,600,730

Exercise price

$ 5.06

Remaining contractual life

2 years 7 months 28 days

Series 1 Warrants [Member]

No. outstanding

1,490,250

No. outstanding classified as equity

64,621

No. outstanding classified as liabilities

^[1]

1,425,629

Exercise price

$ 1.76

Remaining contractual life

2 years 6 months 18 days

Series 2 Warrants [Member]

No. outstanding

1,943,523

No. outstanding classified as equity

1,943,523

No. outstanding classified as liabilities

^[1]

Exercise price

$ 1.76

Remaining contractual life

2 years 6 months 18 days

Conversion Warrants [Member]

No. outstanding

14,492

No. outstanding classified as equity

No. outstanding classified as liabilities

^[1]

14,492

Exercise price

$ 0.94

Remaining contractual life

5 months 23 days

Reload Warrants [Member]

No. outstanding

758,023

No. outstanding classified as equity

597,414

No. outstanding classified as liabilities

^[1]

160,609

Exercise price

$ 1.76

Remaining contractual life

2 years 1 month 6 days

IPO Warrants [Member]

No. outstanding

4,784,000

No. outstanding classified as equity

4,784,000

No. outstanding classified as liabilities

^[1]

Exercise price

$ 5.06

Remaining contractual life

5 months 23 days

October 2012 Warrants [Member]

No. outstanding

3,000,000

No. outstanding classified as equity

3,000,000

No. outstanding classified as liabilities

^[1]

Exercise price

$ 5.06

Remaining contractual life

5 months 23 days

June 2014 Warrants [Member]

No. outstanding

5,412,366

No. outstanding classified as equity

5,412,366

No. outstanding classified as liabilities

^[1]

Exercise price

$ 5.06

Remaining contractual life

5 months 23 days

[1]	These warrants bear down-round protection clauses and as a result, they are classified as derivative liabilities and recorded at fair value.

Warrants (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended			12 Months Ended
	Oct. 12, 2012	Jun. 20, 2014	Jun. 19, 2014	Jul. 19, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 31, 2012
Common Stock, Shares, Outstanding					93,404,895	84,502,653
Exercise Price			$ 5.06
Common stock, par value			$ 0.01		$ 0.01	$ 0.01
Proceeds From Warrant Exercises			$ 10,027		$ 11,292	$ 590	$ 12,275
Expected Term Of Warrants	2 years 7 months 28 days
Issuance of warrants					$ (65)	0	$ (2,883)
Warrant outstanding					17,402,654			2,173,852
Conversion of derivative warrants to equity warrants						$ 3,918
Dividend yield					0.00%	0.00%
Maximum [Member]
Risk free interest rate					0.87%	1.11%
Minimum [Member]
Risk free interest rate					0.13%	0.16%
June 2014 Warrants [Member]
Exercise Price			$ 5.06
Warrants Issued			5,412,366
Common stock, par value			$ 0.01
Warrant [Member]
Common Stock, Shares, Outstanding			5,697,227
Exercise Price			$ 1.76
Share Price		$ 3.33
Warrants volatility rate	68.10%	40.05%
Issuance of warrants	$ 2,883	$ 65
Risk free interest rate	0.724%	0.15%
Dividend yield	0.00%	0.00%
Warrants and Rights Outstanding		$ 611
Warrant [Member] \| Maximum [Member]
Share Price	$ 3.77
Warrant [Member] \| Minimum [Member]
Share Price	3.50
Warrant [Member] \| Innovate Protect Inc [Member]
Exercise Price	$ 5.06
Warrants Issued	3,000,000
Common stock, par value	$ 0.01
Series One Warrants [Member]
Warrants Issued				8,299,115
Expected Term Of Warrants				5 years
Nonoperating Income (Expense), Adjustment						$ 1,617
Series Two Warrants [Member]
Warrants Issued				7,660,722
Expected Term Of Warrants				5 years
Special Bridge Warrants [Member]
Expected Term Of Warrants				2 years 5 months 8 days
Preferential Reload Warrants [Member]
Expected Term Of Warrants				4 years 6 months 18 days
Non Preferential Reload Warrants [Member]
Expected Term Of Warrants				4 years 6 months 18 days
Inducement Warrants [Member]
Exercise Price	$ 1.76
Warrants Issued	3,721,062

Revenue from Settlement and Licensing Agreements (Additional Information) (Details) $ in Thousands	1 Months Ended
	May 30, 2013 USD ($)
Litigation Settlement Amount Description	According to the agreement, Microsoft Corporation paid the Company $1,000 and agreed to pay 5% of any future amount Google pays for its use of the patents acquired from Lycos.
Microsoft Corporation [Member]
Proceeds from Legal Settlements	$ 1,000
Litigation Settlement Revenue Percentage	5.00%

Income Taxes (Components of income (loss) before income taxes ) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Domestic	$ (108,828)	$ (41,204)	$ (17,673)
Foreign	(394)	(544)	(736)
Total	$ (109,222)	$ (41,748)	$ (18,409)

Income Taxes (Income Tax Benefit (Expense) Attributable To The Operating Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current	$ (246)	$ (245)	$ (112)
Deferred	0	(12)	57
Total	$ (246)	$ (257)	$ (55)

Income Taxes (Income Tax Benefit Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loss from continuing operations before taxes on income	$ (109,222)	$ (41,748)	$ (18,409)
Tax rate	35.00%	35.00%	35.00%
Computed "expected" tax benefit	$ 38,228	$ 14,612	$ 6,443
Change in valuation allowance	(13,864)	(10,398)	(7,461)
Nondeductible expenses	(25,070)	(6,812)	(15)
State and local income tax, net of federal income tax expense	793	2,714	1,197
Other items	(87)	(116)	(164)
Income tax expense attributable to continuing operations	$ 0	$ 0	$ 0

Income Taxes (Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred income tax assets:
Net operating loss carryforwards	$ 43,558	$ 29,918
Stock-based compensation	4,789	8,104
Impairment of patents and other	341	7
Total gross deferred income tax assets	48,688	38,029
Less:
Valuation allowance	(48,688)	(37,758)	$ (24,274)	$ (1,231)
Deferred income tax liability for acquired technology	0	(264)
Net deferred income tax assets	$ 0	$ 7

Income Taxes (Changes to Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Balance	$ 37,758	$ 24,274	$ 1,231
Charged to cost and expenses			12,240
Acquisitions*			10,803
Return to provision true-up and other	(3,233)
Balance	48,688	37,758	$ 24,274
Continuing Operations [Member]
Charged to cost and expenses	13,864	10,398
Discontinued Operations [Member]
Charged to cost and expenses	$ 299	$ 3,086

Income Taxes (Additional Information) (Details)
$ in Thousands

Dec. 31, 2014

USD ($)

Operating Loss Carryforwards

$ 117,000

^[1]

[1]	The NOL amounts are presented before Internal Revenue Code, Section 382 limitations.

Commitments and Contingencies (Future Minimum Lease Payments) (Details) $ in Thousands	Dec. 31, 2014 USD ($)
Finite-Lived Intangible Assets [Line Items]
2015	$ 370
2016	403
2017	407
2018	416
2019	347
Total	$ 1,943

Commitments and Contingencies (Additional Information) (Details) € in Thousands, R$ in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
	Jul. 30, 2012 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	May 05, 2014 EUR (€)	Apr. 17, 2014 BRL (R$)	May 31, 2013 USD ($)	Nov. 30, 2012 USD ($)
Finite-Lived Intangible Assets [Line Items]
Rental expense for operating leases		$ 366	$ 230	$ 120
Deposits Assets, Current		2,067	$ 0
ZTE In Germany [Member]
Finite-Lived Intangible Assets [Line Items]
Deposits Assets, Current		1,216			€ 1,000
ZTE In Brazil [Member]
Finite-Lived Intangible Assets [Line Items]
Deposits Assets, Current		752				R$ 2,020
Until Renovation Of Building [Member]
Finite-Lived Intangible Assets [Line Items]
Operating Lease Rent Expense Annual Fee		$ 403
Maximum [Member] \| Written Commitment One [Member]
Finite-Lived Intangible Assets [Line Items]
Guarantee placed for contingent loss in litigation								$ 2,900
Maximum [Member] \| Written Commitment Two [Member]
Finite-Lived Intangible Assets [Line Items]
Guarantee placed for contingent loss in litigation							$ 2,900
New York [Member]
Finite-Lived Intangible Assets [Line Items]
Operating Lease Rent Expense Annual Fee	$ 137

Quarterly Financial Information (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue	$ 225	$ 150	$ 800	$ 250	$ 0	$ 0	$ 1,100	$ 0	$ 1,425	$ 1,100	$ 100
Operating loss from continuing operations	(75,822)	(15,196)	(10,353)	(9,825)	(11,004)	(10,519)	(8,755)	(10,499)	(111,196)	(40,777)	(22,371)
Loss from continuing operations	(75,897)	(12,376)	(10,049)	(10,900)	(10,811)	(9,849)	(10,229)	(10,859)	(109,222)	(41,748)	(18,409)
Loss from discontinued operations	(246)	0	0	(209)	(8,158)	(711)	(711)	(1,105)	(455)	(10,685)	(2,432)
Net loss	$ (76,143)	$ (12,376)	$ (10,049)	$ (11,109)	$ (18,969)	$ (10,560)	$ (10,940)	$ (11,964)	$ (109,677)	$ (52,433)	$ (20,841)
Net loss per share (in dollars per share)	$ (0.81)	$ (0.13)	$ (0.12)	$ (0.13)	$ (0.23)	$ (0.13)	$ (0.13)	$ (0.15)	$ (1.23)	$ (0.63)	$ (0.53)
Diluted net loss per share (in dollars per share)	$ (0.82)	$ (0.16)	$ (0.12)	$ (0.13)	$ (0.23)	$ (0.13)	$ (0.13)	$ (0.15)	$ (1.24)	$ (0.63)	$ (0.61)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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