Statement of Shareholder's Equity (USD $) In Thousands, unless otherwise specified	Total	[CommonStockMember]	[TreasuryStockMember]	[AdditionalPaidInCapitalMember]	[RetainedEarningsMember]	[SeriesCPreferredStockMember] [CommonStockMember]	[SeriesCPreferredStockMember] [AdditionalPaidInCapitalMember]
Balance, at Dec. 31, 2009	$ 60,133	$ 19	$ (587)	$ 247,820	$ (187,119)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock dividends	(2,227)				(2,227)
Common stock issuance	30,181	5		30,176
Series C preferred stock conversion	5,907			5,906		1
Amortization of deferred compensation	3,660			3,660
Other	433			433
Net Income (Loss)	56,531				56,531
Balance, at Dec. 31, 2010	154,618	25	(587)	287,995	(132,815)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock dividends	(1,974)				(1,974)
Common stock issuance	118,445	12		118,433
Series C preferred stock conversion	9,449					1	9,448
Amortization of deferred compensation	3,697			3,697
Other	839			839
Net Income (Loss)	(130,995)				(130,995)
Balance, at Dec. 31, 2011	154,079	38	(587)	420,412	(265,784)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock dividends	(1,823)				(1,823)
Common stock issuance	60,805	9		60,796
Issuance of warrants	6,273			6,273
Series C preferred stock conversion	0	0		0
Amortization of deferred compensation	6,033			6,033
Other	290			290
Net Income (Loss)	(126,226)				(126,226)
Balance, at Dec. 31, 2012	$ 99,431	$ 47	$ (587)	$ 493,804	$ (393,833)