Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 2,462	$ 3,495
Less: accumulated depreciation and amortization	(1,125)	(2,047)
Property and equipment, net	1,337	1,448
Furniture, Fixtures and Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	163	222
Laboratory Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	243	1,040
Computers and Telecommunications [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	179	291
Software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, at cost	128	148
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 1,749	$ 1,794