Property and Equipment - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Accumulated depreciation and amortization	$ 2,026,050	$ 1,365,939
Laboratory Equipment
Property Plant And Equipment [Line Items]
Disposal of property and equipment, gross	320,778
Accumulated depreciation and amortization	139,003
Loss on disposal of property and equipment	$ 54,274