CONDENSED CONSOLIDATED STATEMENT OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (UNAUDITED) (USD $) In Thousands, except Share data	Series A Convertible Preferred Stock	Series B Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated other comprehensive loss	Accumulated Deficit	Total
Beginning Balance, Amount at Dec. 31, 2014	$ 178,218	$ 1	$ 123	$ 18,725	$ 236	$ (12,434)	$ 6,651
Beginning Balance, Shares at Dec. 31, 2014	1,000,000	1,000,000	122,494,000
Exercise of common stock options, Shares			161
Exercise of common stock options, Amount				20			20
Conversion of Series A and Series B Convertible Preferred Stock	(1,000,000)	(1,000,000)	545,844,000
Conversion of Series A and Series B Convertible Preferred Stock, Amount	(178,218)	(1)	546	177,673			178,218
Stock-based compensation					93		93
Sale of common shares, Shares			12,839
Sale of common shares, Amount			13	11,799			11,812
Unrealized gain on marketable securities					(980)		(980)
Exercise of warrants, Shares			5,881
Exercise of warrants, Amount			5	9,421			9,426
Net loss						(16,542)	(16,542)
Ending Balance, Amount at Mar. 31, 2015			$ 687	$ 217,731	$ (744)	$ (28,976)	$ 188,698
Ending Balance, Shares at Mar. 31, 2015			687,219,000