Equity and Earnings per Share (Details 1) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Reconciliation of the numerator and denominator used in the basic and diluted per share calculations
Net income (loss)	$ (18,508)	$ 7,531	$ (11,161)	$ 3,670
Preferred stock accretion	(501)	(380)	(972)	(735)
Preferred stock dividends	(2,155)	(1,915)	(4,248)	(3,774)
Net income (loss) attributable to common stockholders	$ (21,164)	$ 5,236	$ (16,381)	$ (839)
Common shares	12,403,378	8,310,527	11,804,745	8,283,488
Denominator for basic earnings per share	12,403,000	8,311,000	11,805,000	8,283,000
Unvested share-based awards		126,039
Warrants		10,159,326
Stock options		195,957
Denominator for diluted earnings per share	12,403,000	18,792,000	11,805,000	8,283,000
Basic earnings (loss) per share	$ (1.71)	$ 0.63	$ (1.39)	$ (0.10)
Diluted earnings (loss) per share	$ (1.71)	$ 0.28	$ (1.39)	$ (0.10)
Antidiluted Share Based Awards [Member]
Reconciliation of the numerator and denominator used in the basic and diluted per share calculations
Securities excluded from earnings per share calculation	231,970		231,970	308,175
Antidilutive Stock Options [Member]
Reconciliation of the numerator and denominator used in the basic and diluted per share calculations
Securities excluded from earnings per share calculation	1,264,538	201,250	1,264,538	697,750
Warrant [Member]
Reconciliation of the numerator and denominator used in the basic and diluted per share calculations
Securities excluded from earnings per share calculation	22,915,153		22,915,153	20,204,259