Parent Company Financial Information (Schedule of Statement of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ (3,614)	$ 24,702	$ 10,690
Stock purchases for deferred compensation plan(24,489 shares)	0	0	100
Share-based Compensation	(370)	(359)	(276)
Decrease in accrued interest payable and other liabilities	336	330	263
Net cash provided by operating activities	(7,204)	(7,914)	(9,791)
Net cash (used in) provided by investing activities	(46,745)	(7,705)	91,904
Net proceeds from stock offering	0	0	(28,802)
Net proceeds from exercise of stock options	0	0	(14)
Net cash (used in) provided by financing activities	63,410	(194,881)	121,448
Increase (decrease) in cash	102,951	(195,090)	19,753
Cash and cash equivalents, beginning of year	(230,955)	(35,865)	(55,618)
Cash and cash equivalents, end of period	(128,004)	(230,955)	(35,865)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(3,614)	24,702	10,690
Stock purchases for deferred compensation plan(24,489 shares)			(100)
Share-based Compensation	(370)	(359)	(276)
Increase in other assets	(542)	(486)	(82)
Decrease in accrued interest payable and other liabilities	(226)	223	101
Total equity in undistributed loss of subsidiaries	(4,535)	23,948	10,690
Total equity in undistributed loss of subsidiaries	4,535	(23,948)	(10,690)
Net cash provided by operating activities	1,319	658	(195)
Investment in subsidiaries	(88,945)	(83,343)
Investment in subsidiaries	88,945	83,343
Net cash (used in) provided by investing activities		(8,000)	(30,000)
Net proceeds from stock offering			(28,802)
Net proceeds from exercise of stock options			(14)
Net cash (used in) provided by financing activities			(28,816)
Increase (decrease) in cash	1,319	8,658	989
Cash and cash equivalents, beginning of year	(2,055)	(10,713)	(11,702)
Cash and cash equivalents, end of period	$ (736)	$ (2,055)	$ (10,713)