Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended					12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Patents	Jun. 30, 2013 Patents	Sep. 30, 2014 Patents Minimum	Sep. 30, 2014 Patents Maximum	Sep. 30, 2014 Licensing Agreements
Expected Amortization Expense [Line Items]
Intangible assets not subject to amortization, Impairment	$ 2,172,387			$ 1,300,000
Capitalized intangible asset net book value	68,538	123,191	1,667,247		1,300,000
Amortization period of intangible assets	12 years					3 years	20 years	4 years
Amortization of license agreements in 2015	55,000
Amortization of license agreements in 2016	13,000
Amortization of license agreements, thereafter	0
Amortization expense	54,653	236,009	293,964
Finite-lived intangible assets, accumulated amortization	$ 161,500