Stockholders' Equity (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary of stock options outstanding
Stock Options Outstanding, Beginning Balance	69,537	44,529
Stock Options, Granted	4,500	26,553
Stock Options, Forfeited, or expired	(2,025)	(1,545)
Stock Options Outstanding, Ending Balance	72,012	69,537
Options exercisable	57,058	43,379
Weighted Average Exercise Price, Beginning Period	$ 0.05	$ 0.05
Weighted Average Exercise Price, Granted	$ 0.02	$ 0.04
Weighted Average Exercise Price, Forfeited, or expired	$ 0.11	$ 0.11
Weighted Average Exercise Price, Ending Period	$ 0.04	$ 0.05
Weighted Average Exercise Price, Exercisable at ending balance	$ 0.05	$ 0.05	$ 0.05
Weighted Average Remaining Contractual Term, ending balance	4 years 2 months 5 days	5 years 0 months 7 days
Weighted Average Remaining Contractual Term, excercisable at ending balance	3 years 10 months 10 days	4 years 7 months 10 days
Aggregate Intrinsic Value, Granted	$ 27
Aggregate Intrinsic Value, Exercisable at ending balance	$ 7
Weighted average grant date fair value of options granted during period	$ 0.02	$ 0.04