Benefit Plans, Actuarial Assumptions (Details)	12 Months Ended
	Sep. 30, 2012
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount Rate	3.00%
Rate of Compensation Increase	0.00%	[1]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate, Periodic Benefit Costs	3.10%
Expected Return on Assets	5.20%
Net Periodic Benefit Cost, Rate of Compensation Increase	0.00%	[1]

[1] (1) There is no assumed rate of compensation increase as there have been no current active members since April 2006.