Balance Sheet Components - Summary of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Line Items]
Cash	$ 9,822	$ 3,262
Total cash and cash equivalents	12,982	19,473
Money Market Funds [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	3,160	13,141
Commercial Paper
Cash and Cash Equivalents [Line Items]
Cash equivalents	0	323
Corporate Debt
Cash and Cash Equivalents [Line Items]
Cash equivalents	0	2,197
Yankee CD
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 0	$ 550