Equity (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Summary of stock options outstanding
Stock Options Outstanding, Beginning Balance	51,353
Stock Options, Granted	1,500
Stock Options, Exercised	(153)
Stock Options, Forfeited, or expired	(4,797)
Stock Options Outstanding, Ending Balance	47,903
Stock Options, Vested and expected to vest at ending balance	47,903
Stock Options Exercisable at ending balance	18,649
Weighted Average Exercise Price, Beginning Period	$ 0.09
Weighted Average Exercise Price, Granted	$ 0.06
Weighted Average Exercise Price, Exercised	$ 0.06
Weighted Average Exercise Price, Forfeited, or expired	$ 0.34
Weighted Average Exercise Price, Ending Period	$ 0.06
Weighted Average Exercise Price, Vested and expected to vest at ending balance	$ 0.06
Weighted Average Exercise Price, Exercisable at ending balance	$ 0.08
Weighted Average Remaining Contractual Term, ending balance	5 years 6 months
Weighted Average Remaining Contractual Term, vested and expected to vest at ending balance	5 years 6 months
Weighted Average Remaining Contractual Term, excercisable at ending balance	5 years 1 month
Aggregate Intrinsic Value, Beginning Balance	$ 4,449
Aggregate Intrinsic Value, Granted	90
Aggregate Intrinsic Value, Exercised	2
Aggregate Intrinsic Value, Forfeited or expired	1,654
Aggregate Intrinsic Value, Ending Balance	2,876
Aggregate Intrinsic Value, Vested and expected to vest at ending balance	2,876
Aggregate Intrinsic Value, Exercisable at ending balance	$ 1,531