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Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Prepaid Expense and Other Assets, Current [Abstract] |  |  |
Rent and deposits |  | $ 0 | $ 470
Research and development expenses |  | 2,084 | 858
Accounts receivable |  | 449 | 144
Insurance |  | 1,608 | 2,384
Other |  | 255 | 185
Total | $ 2,643 | $ 4,396 | $ 4,041

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