Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statements Of Operations
Revenues	$ 72	$ 2
Operating costs and expenses
Amortization of patent portfolio	531	2,422
Compensation and related expenses (including stock-based compensation)	312	719
Professional fees	705	729
Rent	22	22
Other selling, general and administrative	63	226
Total operating expenses	1,633	4,118
Loss from operations	(1,561)	(4,116)
Other income
Other (loss) income, net	(30)	$ 30
Change in fair value of warrant liabilities	1,542
Total other income	1,512	$ 30
Net loss	(49)	$ (4,086)
Deemed dividend on conversion of Series K convertible preferred stock to common stock	(667)
Net loss attributable to common stockholders	$ (716)	$ (4,086)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.26)	$ (2.71)
Weighted average number of common shares outstanding, Basic and diluted	2,705,864	1,505,887