Commitments and Contingencies - Additional Information (Detail) (USD $)	1 Months Ended		9 Months Ended
	Sep. 30, 2012	Aug. 31, 2012	Mar. 31, 2014 sqft	Jun. 30, 2013
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Lease expiration month and year			2015-06
Lease arrangement rent area, square feet			6,200
Issuance of common stock to acquire intellectual property and technology rights		$ 500,000
Issuance of common stock to purchase asset, shares		195,756
Future aggregate milestone payments		75,200,000
First milestone payment		200,000
Common stock value
Percentage of Purchase Requirement	100.00%
License and supply agreement notice period	90 days
Phase Three Clinical Trial
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Common stock value		500,000
Minimum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Lease rental rate			17,014
Maximum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Lease rental rate			$ 18,252