Consolidated Statements Of Stockholders' Deficit - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Common Shares	Preferred Shares	Treasury Shares	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance (in shares) at Dec. 31, 2014		174,610,451		(20,079)
Beginning Balance at Dec. 31, 2014	$ (88,448)	$ 143,113		$ (217)	$ 738,890	$ (970,234)
Issuance of Series A Convertible Preferred Stock, net	52,149		$ 26,179		25,970
Issuance of Series A Convertible Preferred Stock, net (in shares)			352,150,790
Conversion of Series A Convertible Preferred Stock, net (in shares)		6,283,333	(62,833,330)
Conversion of Series A Convertible Preferred Stock, net	(187)	$ 4,804	$ (4,804)		(187)
Preferred stock purchase option	$ 946				1,814	(868)
Preferred stock beneficial conversion feature					31,341	(31,341)
Exercise of stock options (in shares)	18,020	18,020
Exercise of stock options	$ 31	$ 13			18
Exercise of warrants (in shares)	1,844,585	1,844,585
Exercise of warrants	$ 2,713	$ 1,429			1,284
Vesting of restricted stock units (in shares)		639,500		(114,258)
Vesting of restricted stock units	(117)	$ 483		$ (117)	(483)
Tax provision on stock-based compensation	(641)				(641)
Stock-based compensation	4,840				4,840
Loss for the period	(62,638)					(62,638)
Ending Balance (in shares) at Jun. 30, 2015		183,395,889	289,317,460	(134,337)
Ending Balance at Jun. 30, 2015	$ (91,352)	$ 149,842	$ 21,375	$ (334)	$ 802,846	$ (1,065,081)