Unaudited Condensed Consolidated Statement of Changes in Stockholders' Deficit - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total
Beginning Balance, Amount at Dec. 31, 2014	$ 12	$ 284,328	$ (402,868)	$ (1,354)	$ (119,882)
Beginning Balance, Shares at Dec. 31, 2014	12,051,762
Issuance of common stock for:
Conversion of notes payable, Amount	$ 16	13,872			13,888
Conversion of notes payable, Shares	16,559,499
Cancelation of derivative, Amount	$ 20	7,473			7,493
Cancelation of derivative, Shares	19,666,667
Professional services, Amount		$ 5			$ 5
Professional services, Shares	6,667
Vesting of restricted stock award, Amount
Vesting of restricted stock award, Shares	22,223
Exercise of common stock warrants, Amount	$ 22	$ 24,612			$ 24,634
Exercise of common stock warrants, Shares	22,192,373
Other, Amount
Other, Shares	2,795
Return of common shares in settlement agreement, Amount
Return of common shares in settlement agreement, Shares	(19,500)
Cancellation of related party warrants		$ 44,230			$ 44,230
Stock-based compensation		$ 12,296			12,296
Foreign currency translation loss				$ (4)	(4)
Net loss			$ (24,719)		(24,719)
Ending Balance, Amount at Jun. 30, 2015	$ 70	$ 386,816	$ (427,587)	$ (1,358)	$ (42,059)
Ending Balance, Shares at Jun. 30, 2015	70,482,486