Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 6,647,274	$ 2,655,731
Less: accumulated depreciation and amortization	(1,929,128)	(1,598,811)
Property and equipment, net	4,718,146	1,056,920
Furniture, Fixtures and Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	202,100	125,538
Laboratory Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	1,039,805	959,585
Computers and Telecommunications [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	279,026	220,316
Software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	94,409	64,409
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, at cost	1,731,934	$ 1,285,883
Construction-In-Progress [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	3,300,000
Property and equipment, net	$ 3,300,000