Subsequent Events - Additional Information (Detail) (USD $)	12 Months Ended	1 Months Ended		0 Months Ended	1 Months Ended
	Dec. 31, 2014	Oct. 01, 2014	Mar. 25, 2015	Feb. 11, 2015	Feb. 25, 2015	Dec. 17, 2013
Subsequent Event [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 14.30					$ 2.66
Notes Payable	$ 11,705,620
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term	9 years 1 month 13 days
Fortress Agreement [Member]
Subsequent Event [Line Items]
Contract Claims Description		the Company is required to apply, towards its obligations pursuant to the Fortress Notes, 86% of the difference between (a) any revenues generated from the Monetization Revenue less (b) any litigation or licensing related third party expenses (including fees paid to the original patent owners) reasonably incurred by the Company to earn Monetization Revenue, subject to certain limits (such difference defined as “Monetization Net Revenues”). If Monetization Net Revenue is applied to outstanding principal of the Fortress Notes (defined as “Mandatory Prepayments”), such Mandatory Prepayments are not subject to the prepayment premium described above. To the extent that any obligations under the Fortress Notes are past due, including if such payments are past due as a result of an Acceleration of the Fortress Notes or certain conditions of breach or alleged breach have occurred, the percentage will increase from 86% to 100%.
Revenue Recognition Under Agreement Description		the Company granted to the purchasers identified in the Fortress Agreement (“Revenue Participants”) a right to receive a portion of the Company’s Monetization Revenues totaling $5,500,000 (unless the Revenue Participants have not received $5,500,000 by the Maturity Date, in which case the Revenue Participants have a right to receive a portion of Monetization Revenues totaling $8,250,000) (the “Revenue Stream”).
Share Price		$ 2.00
Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Debt Instrument Convertible Threshold Stock Price	$ 1.14
Series B Preferred Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Debt Instrument, Convertible, Conversion Price	$ 2.00	$ 2.14
Series B Preferred Stock [Member] | Minimum [Member]
Subsequent Event [Line Items]
Debt Instrument, Convertible, Conversion Price	$ 1.14	$ 2.00
Subsequent Event
Subsequent Event [Line Items]
Patent license agreement				2,000,000
Line of Credit Facility, Maximum Borrowing Capacity					3,000,000
Proceeds from Lines of Credit					1,199,500
Proceeds from Issuance of Warrants					1,172,885
Notes Payable				2,000,000
Share-based Compensation Arrangement By Share-based Payment Award, Options, Nonvested Options Grants In Period			1,432,661
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit			$ 2.05
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit			$ 3.85
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term			10 years
Subsequent Event | Employee Stock Option [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			1,269,845
Subsequent Event | Fortress Agreement [Member]
Subsequent Event [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 1.14
Debt Instrument Convertible Threshold Stock Price			$ 1.14
Proceeds from Issuance of Warrants					40,000
Warrants To Purchase Common Stock					500,000
Class Of Warrant Or Rights Expiration Period					7 years
Exercise Price Premium Percentage To The Closing Price			48.00%
Subsequent Event | Fortress Investment Group, LLC [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					3,000,000
Proceeds from Lines of Credit					1,199,500
Proceeds from Issuance of Warrants					1,172,885
Debt Instrument, Fee					The structuring fee equal to 3.5% of the original principal amount of any such Additional Notes is waived.
Contract Claims Description					The new Additional Notes will be repaid from the future licensing payments on the Draw Down Licenses received from those specific Draw Down licensee(s), while the requirements otherwise to pay 86% of the Monetization Net Revenues towards the original Notes for (i) the upfront payment of the initial Draw Down License and (ii) the remaining future payments of Draw Down Licenses are waived in general.
Revenue Recognition Under Agreement Description					The Revenue Participants are entitled to receive $7,700,000 (adjusted from the terms of the Original Notes) plus 70% of the Additional Notes as a portion of the Revenue Stream Basis (as defined below) if the Notes and Revenue Stream payments are paid in full by the Maturity Date or $9,350,000 (adjusted from the terms of the Original Notes) plus 85% of the Additional Notes as a portion of the Revenue Stream Basis if the Notes and Revenue Stream payments are not paid in full by the Maturity Date. The Revenue Stream payments will begin after all obligations on the Notes are paid in full. The Company is required to apply specified decreasing percentages (46% to 31% to 6%) of its net revenues (net of monetization costs) from monetizing its intellectual property assets on an ongoing basis to meet the Revenue Stream payment obligations. Payment of the full Revenue Stream payments in addition to the Note obligations by the Maturity Date would ordinarily occur after the Company receives approximately $60,000,000 in gross licensing revenues, assuming an average monetization cost of 33%.
Warrants To Purchase Common Stock					500,000
Notes Payable					2,000,000
Subsequent Event | National [Member]
Subsequent Event [Line Items]
Warrants To Purchase Common Stock					26,989
Closing Fee					$ 35,985
Class Of Warrant Or Rights Expiration Period					5 years
Share Price					$ 2.00
Subsequent Event | Maximum [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			4 years
Subsequent Event | Maximum [Member] | Employee Stock Option [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			3 years 1 month 6 days
Subsequent Event | Minimum [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			1 year
Subsequent Event | Minimum [Member] | Employee Stock Option [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			2 years 1 month 6 days
Subsequent Event | Series B Preferred Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Debt Instrument, Convertible, Conversion Price					$ 2.00
Subsequent Event | Series B Preferred Stock [Member] | Minimum [Member]
Subsequent Event [Line Items]
Debt Instrument, Convertible, Conversion Price					$ 1.14
Subsequent Event | Directors [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			162,816