Business, Liquidity and Summary of Significant Accounting Policies (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net income (loss) - numerator basic	$ 414	$ (15,078)
Change in fair value liability for price adjustable warrants	(1,729)
Net loss excluding change in fair value liability for price adjustable warrants	$ (1,315)	$ (15,078)
Weighted average common shares outstanding - denominator basic	25,632	21,447
Effect of price adjustable warrants	6,923
Weighted average dilutive common shares outstanding	32,555	21,447
Net income (loss) per common share - basic (in dollars per share)	$ 0.02	$ (0.70)
Net income (loss) per common share - diluted (in dollars per share)	$ (0.04)	$ (0.70)