Fair Value Measurement (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	$ 315,222	$ 295,357	$ 308,089
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	0	0
Fair Value, Inputs, Level 1 [Member] | Money Market Separate Account [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	315,222	295,357
Fair Value, Inputs, Level 2 [Member] | Money Market Separate Account [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	315,222	295,357
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	0	0
Fair Value, Inputs, Level 3 [Member] | Money Market Separate Account [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total plan assets	$ 0	$ 0