CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Sep. 30, 2008		$ 166	$ 58,338	$ (103,387)	$ 244,327	$ (15,966)	$ 183,478
Balance (in Shares) at Sep. 30, 2008		11,692
Cummulative effect of adoption of FASB ASC 320					1,178
Reversal of cummulative effect of adoption of FASB ASC 320 due to realized credit losses					(1,178)
Net income (loss)					29,320		29,320
Other comprehensive income
Unrealized net gain on securities available for sale, Net of taxes						19,914	19,914
Net change in post retirement costs, Net of taxes						(15)	(15)
Total comprehensive income							49,219
Common stock issued pursuant to public offering		42	60,596				60,638
Common stock issued pursuant to public offering (in Shares)		4,194
Stock based compensation expense			524				524
Stock options exercised			350				350
Stock options exercised (in Shares)		19
Excess stock option tax benefit			11				11
Issuance of preferred stock and warrants	1		64,999				65,000
Issuance of preferred stock and warrants (in Shares)	65
Accretion of preferred stock			431		(431)		431
Cash dividends
Common stock					(4,732)		(4,732)
Preferred stock					(2,663)		(2,663)
Treasury stock purchased				(176)			(176)
Treasury stock purchased (in Shares)		(8)
Balance at Sep. 30, 2009	1	208	185,249	(103,563)	265,821	3,933	351,649
Balance (in Shares) at Sep. 30, 2009	65	15,897
Net income (loss)					(36,789)		(36,789)
Other comprehensive income
Unrealized net gain on securities available for sale, Net of taxes						1,096	1,096
Net change in post retirement costs, Net of taxes						(179)	(179)
Total comprehensive income							(35,872)
Common stock issued pursuant to public offering			9,166				9,166
Common stock issued pursuant to public offering (in Shares)		629
Stock based compensation expense			(219)				(219)
Stock options exercised		7	12				19
Stock options exercised (in Shares)		1
Excess stock option tax benefit			3				3
Accretion of preferred stock			556		(556)		556
Cash dividends
Common stock					(3,304)		(3,304)
Preferred stock					(3,252)		(3,252)
Balance at Sep. 30, 2010	1	215	194,767	(103,563)	221,920	4,850	318,190
Balance (in Shares) at Sep. 30, 2010	65	16,527
Net income (loss)					(41,186)		(41,186)
Other comprehensive income
Unrealized net gain on securities available for sale, Net of taxes						(2,114)	(2,114)
Net change in post retirement costs, Net of taxes						(260)	(260)
Total comprehensive income							(43,560)
Stock based compensation expense			432				432
Accretion of preferred stock			591		(591)		591
Cash dividends
Common stock					(3,306)		(3,306)
Preferred stock					(3,250)		(3,250)
Balance at Sep. 30, 2011	$ 1	$ 215	$ 195,790	$ (103,563)	$ 173,587	$ 2,476	$ 268,506
Balance (in Shares) at Sep. 30, 2011	65	16,527