Equity (Details 7) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Excercisable	149,022	151,722	182,644
Weighted Average Remaining Life Of Warrants Or Rights	1 year 8 months 27 days
Warrants Weighted Average Exercise Price	$ 0.0257	$ 0.0269	$ 0.0261
Warrants Group One [Member]
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Excercisable	11,270
Weighted Average Remaining Life Of Warrants Or Rights	0 years 3 months 18 days
Warrants Weighted Average Exercise Price	$ 0.0433
Warrants Group Two [Member]
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Excercisable	129,109
Weighted Average Remaining Life Of Warrants Or Rights	0 years 9 months 26 days
Warrants Weighted Average Exercise Price	$ 0.0225
Warrants Group Three [Member]
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Excercisable	8,643
Weighted Average Remaining Life Of Warrants Or Rights	2 years 3 months 22 days
Warrants Weighted Average Exercise Price	$ 0.0500