Restricted Stock Plan (Summary Of Unvested Shares Of Restricted Stock Awards) (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested shares, Beginning balance	26,491	8,782
Weighted Average Grant Date Fair Value, Beginning balance	$ 19.49	$ 19.54
Unvested Restricted Shares, Granted	20,104	17,709	8,782
Weighted Average Grant Date Fair Value, Granted	$ 15.18	$ 19.47	$ 19.54
Unvested shares, Ending balance	46,595	26,491	8,782
Weighted Average Grant Date Fair Value, Ending balance	$ 17.63	$ 19.49	$ 19.54
Non Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested shares, Beginning balance	23,183	17,280	8,500
Weighted Average Grant Date Fair Value, Beginning balance	$ 29.01	$ 28.15	$ 28.30
Unvested Restricted Shares, Granted	6,701	5,903	8,780
Weighted Average Grant Date Fair Value, Granted	$ 29.19	$ 31.55	$ 28.00
Unvested shares, Ending balance	29,884	23,183	17,280
Weighted Average Grant Date Fair Value, Ending balance	$ 29.05	$ 29.01	$ 28.15