Consolidated Statements Of Changes In Stockholders' Equity And Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2008	$ 58	$ 903,825	$ (866,661)	$ (590)		$ 36,632
Balance, Shares at Dec. 31, 2008	5,772,076
Net income (loss)			(6,484)			(6,484)
Other comprehensive income:
Net unrealized gain, loss on securities available-for-sale				445		445
Total comprehensive Income (loss)						(6,039)
Preferred stockholder dividend		(3,760)				(3,760)
Issuance of common stock related to employee stock transactions, shares	52,312
Stock-based compensation		2,897				2,897
Balance at Dec. 31, 2009	58	902,962	(873,145)	(145)		29,730
Balance, Shares at Dec. 31, 2009	5,824,388
Net income (loss)			9,642			9,642
Other comprehensive income:
Net unrealized gain, loss on securities available-for-sale				(163)		(163)
Total comprehensive Income (loss)						9,479
Preferred stockholder dividend		(3,289)				(3,289)
Conversion of Series B preferred shares	4	9,859				9,863
Conversion of Series B preferred shares, shares	378,446
Repurchase of common shares					(924)	(924)
Repurchase of common shares, shares	(20,000)				20,000
Issuance of common stock related to employee stock transactions	1	145				146
Issuance of common stock related to employee stock transactions, shares	68,987
Stock-based compensation		3,265				3,265
Balance at Dec. 31, 2010	63	912,942	(863,503)	(308)	(924)	48,270
Balance, Shares at Dec. 31, 2010	6,251,821				20,000
Net income (loss)			145,420			145,420
Other comprehensive income:
Net unrealized gain, loss on securities available-for-sale				294		294
Total comprehensive Income (loss)						145,714
Preferred stockholder dividend		(9,482)				(9,482)
Repurchase of common shares					(7,870)	(7,870)
Repurchase of common shares, shares	(135,000)				135,000
Issuance of common stock related to employee stock transactions		1,720				1,720
Issuance of common stock related to employee stock transactions, shares	71,474
Stock-based compensation		4,803				4,803
Balance at Dec. 31, 2011	$ 63	$ 909,983	$ (718,083)	$ (14)	$ (8,794)	$ 183,155
Balance, Shares at Dec. 31, 2011	6,188,295				155,000