Business, Liquidity and Summary of Significant Accounting Policies (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Fair value liability for price adjustable warrants
Balance at December 31, 2014	$ 9,225
Change in fair value included in statement of operations	(1,729)
Balance at March 31, 2015	7,496
Fair Value Liability For Price Adjustable Warrants | Level 3 Significant unobservable inputs
Fair value liability for price adjustable warrants
Balance at December 31, 2014	9,225
Change in fair value included in statement of operations	(1,729)
Balance at March 31, 2015	$ 7,496	$ 9,225
Exercise Price
Balance at December 31, 2014	$ 0.42
Balance at March 31, 2015	$ 0.42	$ 0.42
Stock Price
Balance at December 31, 2014	$ 0.95
Balance at March 31, 2015	$ 0.64	$ 0.95
Volatility
Balance at December 31, 2014	121.00%
Balance at March 31, 2015	110.00%	121.00%
Contractual life (in years)
Contractual life (in years)	2 years 5 months 1 day	3 years 6 months 4 days
Risk free rate
Balance at December 31, 2014	0.90%
Balance at March 31, 2015	0.66%	0.90%