Stock-Based Compensation Plans (Details 4)	12 Months Ended
	Sep. 30, 2012
Fiscal 2011 - 2013 [Member]
Fair value at the date of grant
Minimum Shares	13,707
Target Shares	68,533
Maximum Shares	137,066
Fiscal 2012 - 2014 [Member]
Fair value at the date of grant
Minimum Shares	12,499
Target Shares	62,497
Maximum Shares	124,994