Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Asset (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 585	$ 700
Prepaid research and development costs	117	337
Other current assets	469	96
Total	$ 1,171	$ 1,133