Stock-Based Compensation - Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Exercise Price And Additional Disclosures [Abstract]
Shares Available for Grant, Outstanding, Beginning balance	1,327,645
Additional shares authorized	1,728,441
Shares Available for Grant, Granted	(1,353,300)
Shares Available for Grant, Restricted stock units granted	(298,150)
Shares Available for Grant, Forfeited or cancelled	109,039
Restricted stock units forfeited	33,225
Shares Available for Grant, Outstanding, Ending balance	1,546,900	1,327,645
Vested and exercisable as of March 31, 2022	3,115,184
Number of Options, Outstanding, Beginning balance	5,262,185
Number of Options, Granted	1,353,300
Shares Available for Grant, Restricted stock units granted	298,150
Number of Options, Exercised	(15,995)
Number of Options, Forfeited or cancelled	(109,039)
Number of Options, Outstanding, Ending balance	6,490,451	5,262,185
Weighted-Average Exercise Price, Outstanding, Beginning balance	$ 10.24
Weighted-Average Exercise Price, Granted	5.17
Weighted-Average Exercise Price, Exercised	8.98
Weighted Average Exercise Price Per Option, Forfeited or cancelled	12.06
Weighted-Average Exercise Price, Outstanding, Ending balance	9.16	$ 10.24
Weighted-Average Exercise Price, vested and exercisable	$ 11.07
Weighted Average Remaining Contractual Life, Ending balance	7 years 9 months	7 years 3 months
Vested and exercisable as of March 31, 2022	6 years 2 months 19 days
Aggregate Intrinsic Value	$ 7,636	$ 530
Aggregate Intrinsic Value, Vested and exercisable	$ 1,934