Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended							12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Earnings per Share anti diluted
Net income (loss) available to common stockholders								$ 426,961	$ 43,055	$ (538,226)
Average common shares outstanding-basic								3,744,606	3,693,259	3,585,864
Dilutive effect of equity instruments								2,756,216	2,697,812
Average common shares outstanding-diluted								6,500,822	6,391,071	3,585,864
Net income (loss) per common share
Basic	$ 0.02	$ 0.03	$ 0.05	$ 0.02	$ (0.02)	$ 0.02	$ 0.01	$ 0.11	$ 0.01	$ (0.15)
Diluted	$ 0.01	$ 0.02	$ 0.03	$ 0.01	$ (0.02)	$ 0.01	$ 0.01	$ 0.07	$ 0.01	$ (0.15)