Annual report pursuant to Section 13 and 15(d)

Revenue - Revenue from Product Sales (Detail)

v3.7.0.1
Revenue - Revenue from Product Sales (Detail) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Statement [Abstract]    
License fees $ 2,735,794  
Research and development services 1,439,513 $ 5,593
Milestone payments 1,655,367 2,538,698
Government grants   369,200
Other Revenues   18,440
Total Revenue $ 5,830,674 $ 2,931,931