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Balance Sheet Components - Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Balance Sheet Components [Abstract] |  |
Prepaid expenses | $ 1,372 | $ 433
Prepaid insurance | 566 |
Prepaid research and development | 565 |
Prepaid inventory | 524 | 279
Lease deposit | 422 | 434
Other receivables and current assets | 96 | 117
Deferred transaction costs |  | 1,643
Total prepaid expenses and other current assets | $ 3,545 | $ 2,906

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