CONSOLIDATED STATEMENT OF STOCKHOLDERS' DEFICIT (Unaudited) - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Total	Common Stock	Common Stock Warrants	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2015	$ (171,258)	$ 4,772		$ 504,670	$ (680,700)
Beginning Balance, Shares at Dec. 31, 2015		9,544,000
Stock-based compensation	3,571	$ 116		3,455
Stock-based compensation, Shares		232,000
Restricted stock used for tax withholdings	(313)	$ (21)		(292)
Restricted stock used for tax withholdings, Shares		(42,000)
Stock issued in exchange for debt	13,603	$ 1,385		12,218
Stock issued in exchange for debt, Shares		2,771,000
Common stock warrants issued	14,051		$ 14,051
Common stock warrants exercised	$ 627	$ 440	(6,113)	6,300
Common stock warrants exercised, Shares	877,026	878,000
Stock issuance costs	$ (103)			(103)
Net loss	(80,201)				(80,201)
Ending Balance at Sep. 30, 2016	$ (220,023)	$ 6,692	$ 7,938	$ 526,248	$ (760,901)
Ending Balance, Shares at Sep. 30, 2016		13,383,000