Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Condensed Consolidated Statements Of Operations
Revenue	$ 2us-gaap_Revenues	$ 4us-gaap_Revenues
Operating costs and expenses
Amortization of patent portfolio	2,422us-gaap_AdjustmentForAmortization	2,428us-gaap_AdjustmentForAmortization
Compensation and related expenses (including stock-based compensation)	719	3,532
Professional fees	729us-gaap_ProfessionalFees	1,150us-gaap_ProfessionalFees
Rent	22us-gaap_LeaseAndRentalExpense	67us-gaap_LeaseAndRentalExpense
Other selling, general and administrative	226	836
Total operating expenses	4,118us-gaap_OperatingExpenses	8,013us-gaap_OperatingExpenses
Loss from operations	(4,116)us-gaap_OperatingIncomeLoss	(8,009)us-gaap_OperatingIncomeLoss
Other income (expense)
Other income, net	30us-gaap_OtherIncome	46us-gaap_OtherIncome
Total other income	30us-gaap_NonoperatingIncomeExpense	46us-gaap_NonoperatingIncomeExpense
Net loss	$ (4,086)us-gaap_NetIncomeLoss	$ (7,963)us-gaap_NetIncomeLoss
Net loss per share, basic and diluted	$ (0.14)us-gaap_EarningsPerShareBasicAndDiluted	$ (1.66)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of common shares outstanding, Basic and diluted	28,611,855	4,789,596

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Costs and payments related to employee benefits and equity-based compensation, such as pension expense and contributions, other postretirement benefits expense and payments, stock or unit options expense, and amortization of restricted stock or unit.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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The net result for the period of deducting operating expenses from operating revenues.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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