Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 2,451,775	$ 2,450,548
Less accumulated depreciation and amortization	(1,347,567)	(1,107,746)
Property and equipment, net	1,104,208	1,342,802
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	121,491	121,491
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	926,590	926,590
Computers and Telecommunications [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	150,517	149,290
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	25,069	25,069
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 1,228,108	$ 1,228,108