CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Dividends per common share	$ 0.51	$ 0.47
Stock option exercise, shares	26,210	20,972
Purchase of treasury shares, shares	4,933	9,274
Preferred Stock Redemption Shares	17,120