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Certain Balance Sheet Accounts - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]    
Recoverable research and development tax credits $ 1,922 $ 6,492
Prepaid research and development expenses and deposits 1,285 2,549
Prepaid expenses 1,193 1,330
Other current assets 601 456
Total prepaid expenses and other current assets $ 5,001 $ 10,827