Significant Agreements - Additional Information (Detail)				3 Months Ended		9 Months Ended
	Jun. 16, 2015 USD ($)	Jun. 15, 2015 Parties shares	Feb. 08, 2015 USD ($) shares	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Other Commitments [Line Items]
Fair value of common stock issued						$ 4,248,000
Revenue recognized during period				$ 651,000	$ 30,000	926,000	$ 38,000
Consulting Agreements [Member]
Other Commitments [Line Items]
Shares issued as consideration | shares		100,000
Commission expenses recognized				1,265,000		$ 1,265,000
Number of parties in agreement | Parties		3
Material Transfer Agreement [Member]
Other Commitments [Line Items]
Material transfer agreement term						7 years
Revenue recognized during period						$ 39,000
Material Transfer Agreement [Member] | Maximum [Member]
Other Commitments [Line Items]
Expenses reimbursable						77,000
Tiotropium Bromide Collaboration Agreement [Member]
Other Commitments [Line Items]
Revenue recognized during period				$ 651,000		$ 821,000
Share percentage in gross profit						20.00%
Tiotropium Bromide Collaboration Agreement [Member] | Maximum [Member]
Other Commitments [Line Items]
Expenses reimbursable						$ 1,500,000
Palladium [Member]
Other Commitments [Line Items]
Commission paid for loan financing	$ 1,080,000		$ 315,000			1,395,000
Shares issued as consideration | shares			235,844
Commission expenses recognized						4,378,000
Fair value of common stock issued						$ 2,983,000