Annual report pursuant to Section 13 and 15(d)

Accrued Expenses - Summary of Accrued Expenses (Detail)

v3.20.1
Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Accrued research and clinical development service fees $ 3,865,146 $ 2,076,764
Accrued compensation costs 1,621,008 1,585,689
Accrued professional fees 842,613 433,498
Accrued insurance costs 231,477  
Accrued facilities operation expenses 180,158 232,673
Other accrued expenses 63,387 41,108
Total accrued expenses $ 6,803,789 $ 4,369,732