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Income Taxes - Income Taxes Computed Using Federal Income Tax Rate (Detail) (USD $)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Income Tax Disclosure [Abstract]      
Amount computed using statutory rate $ (2,473,374) $ (2,666,961) $ (42,519)
Net change in valuation allowance for net deferred tax assets 1,968,987 2,247,615 (18,388)
Non-deductible items 548,839 807,533 798
Other     (18,378)
State income tax (43,376) (392,195) 80,979
Income tax provision (benefit) $ 1,076 $ (4,008) $ 2,492