Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Consolidated Statements Of Operations
Revenues		$ 3	$ 2	$ 7
Operating costs and expenses
Amortization of patent portfolio	$ 2,449	2,449	4,871	4,878
Compensation and related expenses (including stock-based compensation)	(54)	7,202	665	10,734
Professional fees	551	$ 1,816	1,280	$ 2,965
Impairment of intangible assets	40,357		40,357
Rent	22	$ 71	44	$ 138
Other selling, general and administrative	122	51	348	886
Total operating expenses	43,447	11,589	47,565	19,601
Loss from operations	(43,447)	(11,586)	(47,563)	(19,594)
Other income (expenses)
Other income (expenses), net	$ (5)	11	$ 25	16
Fair value adjustments for warrant liabilities		7		47
Total other (expenses) income	$ (5)	18	$ 25	63
Net loss	$ (43,452)	$ (11,568)	$ (47,538)	$ (19,531)
Net loss per share, basic and diluted	$ (1.52)	$ (0.69)	$ (1.66)	$ (1.80)
Weighted average number of common shares outstanding, Basic and diluted	28,618,209	16,879,472	28,615,050	10,844,706