XML 54 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1
Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($)
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Intangible Assets Net Excluding Goodwill [Abstract]      
Intangible assets subject to amortization, beginning balance $ 22,164,868    
Intangible assets subject to amortization, Amortization (1,700,429) $ (1,714,313) $ (1,046,571)
Intangible assets subject to amortization, ending balance $ 20,464,439 $ 22,164,868