Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, Outstanding at beginning balance	390,949
Shares, Granted	1,248,520
Shares, Assumed through Merger	248,258
Shares, Exercised	(72,316)
Shares, Expired/cancelled	(65,535)
Shares, Outstanding at ending balance	1,749,876	390,949
Shares, Vested and exercisable	444,700
Shares, Vested and expected to vest	1,749,876
Weighted Average Exercise Price, Outstanding at beginning balance	$ 2.11
Weighted Average Exercise Price, Granted	26.05
Weighted Average Exercise Price, Assumed through Merger	29.20
Weighted Average Exercise Price, Exercised	11.52
Weighted Average Exercise Price, Expired/cancelled	53.99
Weighted Average Exercise Price, Outstanding at ending balance	20.71	$ 2.11
Weighted Average Exercise Price, Vested and exercisable	8.63
Weighted Average Exercise Price, Vested and expected to vest	$ 20.71
Weighted Average Remaining Contractual Term, Outstanding	8 years 5 months 23 days	7 years 3 months 3 days
Weighted Average Remaining Contractual Term, Vested and exercisable	5 years 18 days
Weighted Average Remaining Contractual Term, Vested and expected to vest	8 years 5 months 23 days
Aggregate Intrinsic Value, Outstanding	$ 10,007	$ 505
Aggregate Intrinsic Value, Vested and exercisable	7,585
Aggregate Intrinsic Value, Vested and expected to vest	$ 10,007