CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Sep. 30, 2012	$ 12	$ 236,751	$ 163,426		$ (99,091)	$ 301,098
Balance (in shares) at Sep. 30, 2012	12,287,790
Increase (Decrease) in Stockholders' Equity
Net income			21,577			21,577
Dividends paid ($0.80, $0.88 and $0.88 per share for the year ended September 30, 2012, 2013 and 2014, respectively)			(10,849)			(10,849)
Other comprehensive income (loss)					42,292	42,292
Exercise of stock options		1,092				1,092
Exercise of stock options (in shares)	30,545
Tax impact of forfeited vested options		(185)				(185)
Tax impact of dividends on restricted stock		29				29
Issue restricted stock (less forfeitures) (in shares)	24,250
Purchase of treasury stock				$ (505)		(505)
Purchase of treasury stock (in shares)	(9,993)
Stock compensation		1,254				1,254
Balance at Sep. 30, 2013	$ 12	238,941	174,154	(505)	(56,799)	355,803
Balance (in shares) at Sep. 30, 2013	12,332,592
Increase (Decrease) in Stockholders' Equity
Net income			3,751			3,751
Dividends paid ($0.80, $0.88 and $0.88 per share for the year ended September 30, 2012, 2013 and 2014, respectively)			(10,906)			(10,906)
Other comprehensive income (loss)					(5,029)	(5,029)
Exercise of stock options		1,519				1,519
Exercise of stock options (in shares)	54,913
Tax impact of dividends on restricted stock		158				158
Issue restricted stock (less forfeitures) (in shares)	37,250
Purchase of treasury stock				(335)		(335)
Purchase of treasury stock (in shares)	(6,284)
Stock compensation		1,769				1,769
Balance at Sep. 30, 2014	$ 12	242,387	166,999	(840)	(61,828)	346,730
Balance (in shares) at Sep. 30, 2014	12,418,471
Increase (Decrease) in Stockholders' Equity
Net income			30,486			30,486
Dividends paid ($0.80, $0.88 and $0.88 per share for the year ended September 30, 2012, 2013 and 2014, respectively)			(10,952)			(10,952)
Other comprehensive income (loss)					(26,125)	(26,125)
Tax impact of forfeited vested options		(28)				(28)
Tax impact of dividends on restricted stock		(55)				(55)
Issue restricted stock (less forfeitures) (in shares)	32,750
Purchase of treasury stock				(251)		(251)
Purchase of treasury stock (in shares)	(5,221)
Stock compensation		2,184				2,184
Balance at Sep. 30, 2015	$ 12	$ 244,488	$ 186,533	$ (1,091)	$ (87,953)	$ 341,989
Balance (in shares) at Sep. 30, 2015	12,446,000