Stockholders' Equity - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Outstanding, Beginning Balance, Number of Shares	1,128
Outstanding, Beginning Balance, Weighted Average Exercise Price Per Share	$ 1.08
Options granted , Numbers of Shares	3,223
Vested and exercisable	852
Outstanding, Intrinsic Value	$ 1,973	$ 2,827
Options granted, Weighted Average Exercise Price Per Share	$ 8.82
Options exercised , Numbers of Shares	(301)
Exercised, Aggregate Intrinsic Value	$ 8
Options exercised, Weighted Average Exercise Price Per Share	$ 0.98
Options Cancelled , Number of Shares	(86)
Weighted Average Exercise Price, Vested and excercise	$ 7.39
Options Cancelled , Weighted average exercise price	$ 3.23
Vested and exercisable, Aggregate Intrinsic Value	$ 829
Outstanding, Ending Balance, Number of Shares	3,964	1,128
Cancelled, Aggregate Intrinsic Value	$ 154
Outstanding ending balance, Aggregate Intrinsic Value	$ 1,973	$ 2,827
Outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 7.33	$ 1.08
Outstanding, Weighted Average Remaining Contractual Term (Years)	8 years 10 months 24 days	8 years 6 months
Vested and exercisable, Weighted Average Remaining Contractual Term (Years)	7 years 9 months 18 days
2011 Plan [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Outstanding, Ending Balance, Number of Shares	88
Outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 27.65
Outstanding, Weighted Average Remaining Contractual Term (Years)	3 years 4 months 24 days