Balance Sheet Components - Summary of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Line Items]
Cash	$ 3,466	$ 3,262
Total cash and cash equivalents	29,613	19,473
Money Market Funds
Cash and Cash Equivalents [Line Items]
Cash equivalents	12,289	13,141
Commercial Paper
Cash and Cash Equivalents [Line Items]
Cash equivalents	998	323
Corporate debt
Cash and Cash Equivalents [Line Items]
Cash equivalents	8,358	2,197
Yankee CD
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 4,502	$ 550

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