Common Stock, Outstanding Options (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Common Stock Outstanding [Line Items]
Shares Exercisable, End of Year	22,360	37,385	139,550
Weighted Average Exercise Price	$ 17.53	$ 14.73	$ 4.65
$17.00 to $19.99
Common Stock Outstanding [Line Items]
Shares Exercisable, End of Year	19,990
Weighted Average Remaining Contractual Life (in years)	2.8
Weighted Average Exercise Price	$ 17.00
$20.00 to $22.60
Common Stock Outstanding [Line Items]
Shares Exercisable, End of Year	2,370
Weighted Average Remaining Contractual Life (in years)	3.0
Weighted Average Exercise Price	$ 22.04