Leases - Schedule of Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating lease assets	$ 3,081	$ 5,826
Total leased assets	3,081	5,826
Liabilities
Current - Operating	1,074	717
Noncurrent - Operating	2,220	5,389
Total leased liabilities	3,294	6,106
Lease Cost
Net lease cost	$ 1,422	$ 1,302
Lease Term and Discount Rate
Weighted-average remaining lease term (years)	2 years 8 months 12 days	5 years
Weighted-average discount rate	6.00%	6.00%
SG&A and R&D Expenses [Member]
Lease Cost
Operating lease cost	$ 1,352	$ 1,042
Sublease income	(63)	(45)
R&D Expenses [Member]
Lease Cost
Short term lease cost	$ 133	$ 305