Balance Sheet Components - Summary of Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid research and development project costs	$ 1,233	$ 290
Prepaid software and subscription fees	1,130	536
Prepaid insurance	556	1,029
Other receivables	270	147
Other	993	642
Total prepaid expenses and other current assets	$ 4,182	$ 2,644