Preferred Stock Received in Troubled Asset Relief Program ("TARP") Capital Purchase Program ("CPP") (Details) (USD $)				3 Months Ended	9 Months Ended
	Jun. 30, 2014	Sep. 30, 2013	Dec. 23, 2008	Jun. 30, 2014 Series A Preferred Stock	Jun. 30, 2014 Series A Preferred Stock	Nov. 13, 2012 Series A Preferred Stock	Dec. 23, 2008 Series A Preferred Stock	Dec. 23, 2008 Series A Preferred Stock Minimum	Dec. 23, 2008 Series A Preferred Stock Maximum
Class of Stock [Line Items]
Preferred stock, proceeds from Capital Purchase Program (CPP)			$ 16,640,000
Preferred stock shares issued	0	12,065				16,641	16,641
Preferred stock per share liquidation value (in dollars per share)	$ 1,000	$ 1,000					$ 1,000
Warrants to purchase shares of common stock			370,899
Warrant, exercise price per share (in dollars per share)			$ 6.73
Preferred stock dividend rate								5.00%	9.00%
Preferred stock dividend, term of initial rate					5 years
Shares repurchased and retired (in shares)				4,576
Shares repurchased and retired, amount				4,320,000
Shares repurchased and retired, discount from par value				$ 255,000