Other License Agreements and Acquired Product Rights - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended		12 Months Ended	0 Months Ended	3 Months Ended
	Feb. 28, 2012	Sep. 30, 2007	Jul. 31, 2009	Dec. 31, 2014	Oct. 07, 2010	Sep. 30, 2013
Other License Agreements And Acquired Product Rights [Line Items]
Notes settlement amount	$ 1,050,000
Tolmar Notes [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Notes Issued Outstanding Amount				2,000,000
North American [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Purchase price of rights and assets		7,000,000
Cash paid as consideration		3,000,000
Promissory note to be paid		4,000,000
Cumulative net sales for determining payment of promissory note		30,000,000
North America [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Promissory note paid			2,000,000
Promissory Note Due Period				30 days
Amount outstanding under the Tolmar note				2,000,000
North America [Member] | To be Paid Within 30 Days of Regulatory Approval of the First Product [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Promissory note to be paid		2,000,000
Kunwha License Agreement [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Expiration date of the agreement				Jul. 23, 2027
Upfront payment				300,000
Up-front payment net of tax				250,000
Milestone payments				1,300,000
Milestone payments net of tax				1,100,000
TTY License and Supply Agreement [Member]
Other License Agreements And Acquired Product Rights [Line Items]
Upfront payment					300,000
Milestone payments					1,300,000
Term of the agreement				15 years
Milestone payment received						$ 300,000