Balance Sheet Components - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract]
Accrued compensation expense	$ 2,109	$ 2,954
Accrued general and administrative expense	1,845	209
Accrued research and development expense	1,699	829
Accrued income taxes payable	200	200
Other current liabilities	134	85
Accrued expenses and other current liabilities	$ 5,987	$ 4,277