Subsequent Events - Additional Information (Details) - Subsequent Event - License Agreements	Jan. 31, 2017 USD ($)
Subsequent Event [Line Items]
Maximum future contingent license payment	$ 6,400,000
Aggregate potential milestone payments for receipt of regulatory approval	5,000,000
Aggregate potential milestone payments for final regulatory approval of second indication	$ 500,000
Minimum
Subsequent Event [Line Items]
Rate of revenue share	6.50%
Maximum
Subsequent Event [Line Items]
Rate of revenue share	25.00%