Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Disclosure - Goodwill and Intangible Assets - Additional Information (Detail) [Line Items]
Goodwill	$ 2,806,850		$ 2,872,677
Amortization of intangible assets	$ 149,200	$ 0
Minimum [Member]
Disclosure - Goodwill and Intangible Assets - Additional Information (Detail) [Line Items]
Estimated useful lives of intangible assets	5 years
Maximum [Member]
Disclosure - Goodwill and Intangible Assets - Additional Information (Detail) [Line Items]
Estimated useful lives of intangible assets	6 years