CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Sep. 30, 2009	$ 351,649	$ 1	$ 208	$ 185,249	$ (103,563)	$ 265,821	$ 3,933
Balance (in Shares) at Sep. 30, 2009		65	15,897
Net loss	(35,617)					(35,617)
Other comprehensive income:
Unrealized net gain (loss) on securities available for sale, net of tax of $2,101 and $3,075 for 9 Months ended June 2010 and 2011 respectively	3,165						3,165
Total comprehensive loss	(32,452)
Stock based compensation expense	288			288
Common stock issued pursuant to public offering	9,190		7	9,183
Common stock issued pursuant to public offering (in Shares)			630
Stock options exercised	12			12
Accretion of preferred stock	413			413		(413)
Cash dividends:
Common stock ($0.15 per share)	(2,450)					(2,450)
Preferred stock	(2,440)					(2,440)
Balance at Jun. 30, 2010	323,797	1	215	195,145	(103,563)	224,901	7,098
Balance (in Shares) at Jun. 30, 2010		65	16,527
Balance at Sep. 30, 2010	318,190	1	215	194,767	(103,563)	221,920	4,850
Balance (in Shares) at Sep. 30, 2010		65	16,527
Net loss	(42,263)					(42,263)
Other comprehensive income:
Unrealized net gain (loss) on securities available for sale, net of tax of $2,101 and $3,075 for 9 Months ended June 2010 and 2011 respectively	(4,836)						(4,836)
Total comprehensive loss	(47,099)
Stock based compensation expense	390			390
Accretion of preferred stock	440			440		(440)
Cash dividends:
Common stock ($0.15 per share)	(2,480)					(2,480)
Preferred stock	(2,437)					(2,437)
Balance at Jun. 30, 2011	$ 266,564	$ 1	$ 215	$ 195,597	$ (103,563)	$ 174,300	$ 14
Balance (in Shares) at Jun. 30, 2011		65	16,527