CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' DEFICIT - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock, Par Value	Additional Paid in Capital	Deficit Accumulated	Total
Balance at Dec. 31, 2014	$ 11	$ 261,715	$ (266,885)	$ (5,159)
Balance (in shares) at Dec. 31, 2014	96,609,764			96,609,764
Increase (Decrease) in Stockholders' Equity
Common stock issued pursuant to a controlled equity "at-the-market" sales agreement		14,672		$ 14,672
Common stock issued pursuant to a controlled equity "at-the-market" sales agreement (in shares)	3,435,998
Fees and expenses related to controlled equity sales		(404)		(404)
Shares issued in connection with conversion of Senior Convertible Debentures	$ 1	22,212		22,213
Shares issued in connection with conversion of Senior Convertible Debentures (in shares)	7,142,430
Stock based compensation expense		7,794		7,794
Net loss for the period			(61,057)	(61,057)
Balance at Jun. 30, 2015	$ 12	$ 305,989	$ (327,942)	$ (21,941)
Balance (in shares) at Jun. 30, 2015	107,188,192			107,188,192