Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements of Comprehensive Income [Abstract]
Net income (loss)	$ 12,535,000	$ 37,485,000	$ (13,316,000)
Other comprehensive income (loss):
Change in net unrealized gain on securities available for sale, net of reclassifications and tax effect	(955,000)	2,503,000	(244,000)
Change in fair value of interest rate swap, net of tax effect	(723,000)	0	0
Net unrealized gain on securities transferred from held to maturity to available for sale, net of tax effect	0	0	274,000
Reclassification of unrealized gain on interest rate swaps, net of tax effect	0	0	(64,000)
Other comprehensive income (loss)	(1,678,000)	2,503,000	(34,000)
Comprehensive income (loss)	$ 10,857,000	$ 39,988,000	$ (13,350,000)