Stockholders' Equity (Details 1) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of option activity for stock options
Outstanding at January 1, 2012, Shares	796,500,000
Outstanding at January 1, 2012, Weighted Average Exercise Price	$ 12.20
Granted, Shares
Granted, Weighted Average Exercise Price
Granted, Weighted Average Remaining Contractual Life (Yrs)
Granted, Aggregate Intrinsic Value
Exercised, Shares	(39,000,000)	0
Exercised, Weighted Average Exercise Price	$ 7.81
Expired on December31, 2012, Shares	(10,000,000)
Expired on December31, 2012, Weighted Average Exercise Price	$ 19.95
Exercised, Aggregate Intrinsic Value	245		2
Forfeited, Shares
Forfeited, Weighted Average Exercise Price
Outstanding at December31, 2012, Shares	747,500,000	796,500,000
Outstanding at December31, 2012, Weighted Average Exercise Price	$ 12.32	$ 12.20
Outstanding, Weighted Average Remaining Contractual Life (Yrs.)	5 years 11 months 1 day
Outstanding at December31, 2012 Aggregate Intrinsic Value	3,931
Exercisable on December31, 2012, Shares	595,827,000
Exercisable on December31, 2012, Weighted Average Exercise Price	$ 13.34
Exercisable on December31, 2012, Weighted Average Remaining Contractual Life (Yrs.)	5 years 5 months 5 days
Exercisable on December31, 2012, Aggregate Intrinsic Value	2,918
Expected to vest December31, 2012,, Shares	144,089,000
Expected to vest December31, 2012, Weighted Average Exercise Price	$ 8.33
Expected to vest December31, 2012, Weighted Average Remaining Contractual Life (Yrs.)	8 years 1 month 17 days
Expected to vest December31, 2012, Aggregate Intrinsic Value	$ 1,013