CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 64,882	$ 5,457	$ (61,896)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF INCOME TAXES:
Unrealized holding gain on AFS securities arising during the period	28	2,638	56
Income tax expense related to AFS unrealized holding gains	(10)	(950)	(20)
Reclassification for net (gains) losses on AFS securities realized in earnings	38	(5)	36
Income tax benefit (expense) related to AFS realized gains (losses)	(14)	2	(13)
Amortization of unrealized gain on tax exempt securities transferred from available-for-sale to held-to-maturity	8	16	42
Other comprehensive income	50	1,701	101
COMPREHENSIVE INCOME (LOSS)	$ 64,932	$ 7,158	$ (61,795)