Summary of Stock Options Outstanding and Exercisable (Details) - USD ($)	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Options Outstanding Shares	89,700	89,700	106,050	245,956
Options Outstanding, Weighted Average Remaining Term	4 years
Options Outstanding Weighted Average Exercise Price	$ 17.27	$ 17.27	$ 18.61	$ 13.90
Options Outstanding Intrinsic Value	$ 192,146
Options Exercisable Shares	89,700
Option Exercisable Weighted Average Remaining Term	4 years
Options Exercisable Weighted Average Exercise Price	$ 17.27
Options Exercisable Intrinsic Value	$ 192,146
Range One
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	$ 26.48
Range of Exercise Prices Maximum	$ 9.99
Options Outstanding Shares	38,200
Options Outstanding, Weighted Average Remaining Term	3 years 2 months 12 days
Options Outstanding Weighted Average Exercise Price	$ 8.78
Options Outstanding Intrinsic Value	$ 192,146
Options Exercisable Shares	38,200
Option Exercisable Weighted Average Remaining Term	3 years 2 months 12 days
Options Exercisable Weighted Average Exercise Price	$ 8.78
Options Exercisable Intrinsic Value	$ 192,146
Range Two
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	$ 10.00
Range of Exercise Prices Maximum	$ 8.78
Options Outstanding Shares	51,500
Options Outstanding, Weighted Average Remaining Term	4 years 7 months 6 days
Options Outstanding Weighted Average Exercise Price	$ 23.57
Options Exercisable Shares	51,500
Option Exercisable Weighted Average Remaining Term	4 years 7 months 6 days
Options Exercisable Weighted Average Exercise Price	$ 23.57