Financial Information of Registrant (Parent Company) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended										6 Months Ended		12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net Income (Loss)	$ 96	$ 3,279	$ (4,208)	$ (8,207)	$ (25,749)	$ (3,688)	$ (53,474)	$ (1,608)	$ (2,090)	$ 392	$ (29,437)	$ (1,698)	$ (9,040)	$ (84,519)	$ (56,780)	$ 7,040
Stock-based compensation											171		604		998	1,048
Deferred income taxes											2		2		(98)
Other											134		331		397	521
Net cash used in operating activities											(7,326)		3,804		(6,169)	(1,117)
Cash flows from investing activities:
Maturities of investments, available for sale											14,315		41,969		23,260	11,326
Net cash provided by (used in) investing activities											12,778		31,534		9,314	(49,901)
Cash flows from financing activities:
Purchase of treasury stock											(10,988)
Net proceeds from issuance of common stock											23		52		56	67
Net cash provided by (used in) financing activities											(11,006)		15		(24)	1
Net change in cash and cash equivalents											(5,554)		35,353		3,121	(51,017)
Cash and cash equivalents, beginning of period				23,751		29,305				26,184	29,305	26,184	23,751		26,184	77,201
Cash and cash equivalents, end of period	59,104				23,751		29,305				23,751		59,104	23,751	29,305	26,184
Parent Company [Member]
Cash flows from operating activities:
Net Income (Loss)											(29,437)		(9,040)		(56,780)	7,040
Equity in loss (income) of subsidiaries, net of tax											27,074		6,830		49,926	(13,813)
Stock-based compensation											171		604		998	1,048
Deferred income taxes											2		1		(98)
Other											8		(6)		(108)	(2)
Change in assets and liabilities											(764)		792		1,069	4,488
Net cash used in operating activities											(2,946)		(819)		(4,993)	(1,239)
Cash flows from investing activities:
Dividends from subsidiary											10,684		5,150		7,079	7,670
Maturities of investments, available for sale													3,518
Improvements to foreclosed real estate											(2)		(2)		(2)	(22)
Investment in subsidiary													(13,000)
Net cash provided by (used in) investing activities											10,682		(4,334)		7,077	7,648
Cash flows from financing activities:
Purchase of treasury stock											(10,988)
Net proceeds from issuance of common stock											23		52		56	67
Net cash provided by (used in) financing activities											(10,965)		52		56	67
Net change in cash and cash equivalents											(3,229)		5,101		2,140	6,476
Cash and cash equivalents, beginning of period				8,445		11,674				9,534	11,674	9,534	8,445		9,534	3,058
Cash and cash equivalents, end of period	$ 3,344				$ 8,445		$ 11,674				$ 8,445		$ 3,344	$ 8,445	$ 11,674	$ 9,534