Intangible Assets - Schedule of Intangible Asset (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2012
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization, beginning balance	$ 3,117,322	$ 3,117,322
Intangible assets not subject to amortization, Amortization
Intangible assets not subject to amortization, ending balance	3,117,322	3,117,322	3,117,322
Intangible assets not subject to amortization, Impairment
Intangible assets subject to amortization, beginning balance	123,191	1,667,247	1,731,211
Amortization	(13,663)	(236,009)	(293,964)
Intangible assets subject to amortization, ending balance	109,528	123,191	1,667,247
Impairment		(1,308,047)
Total Intangible assets, beginning balance	3,240,513	4,784,569	1,731,211
Total Intangible assets, Amortization	(13,663)	(236,009)	(293,964)
Total Intangible assets, ending balance	3,226,850	3,240,513	4,784,569
Roche Madison
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization, Additions			944,935
Intangible assets subject to amortization, Additions			230,000
Total Intangible assets, Additions			1,174,935
Alvos Therapeutics
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization, Additions			2,172,387
Intangible assets subject to amortization, Additions
Total Intangible assets, Additions			$ 2,172,387