Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Statement Of Financial Position [Abstract]
Allowance for loan losses	$ 8,064	$ 7,302
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	18,133,095	18,133,095
Common stock, shares outstanding	11,945,564	13,229,908
Treasury stock, shares outstanding	6,187,531	4,903,187