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Accrued expenses and other current liabilities | 12 Months Ended
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Dec. 31, 2021
Payables and Accruals [Abstract] |
Accrued Expenses and Other Current Liabilities | Note 6. Accrued expenses and other current liabilities Accrued expenses and other current liabilities consisted of the following (in thousands):
|  | December 31, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Accrued research and development expenses |  | $ | 9,122 |  |  | $ | 6,649 |
Accrued compensation |  |  | 7,275 |  |  |  | 2,416 |
Unvested early exercised stock option liability |  |  | 2,884 |  |  |  | 2,526 |
Accrued construction in process |  |  | 1,272 |  |  |  | — |
Accrued professional services |  |  | 383 |  |  |  | 194 |
Other accruals |  |  | 483 |  |  |  | 140 |
Total |  | $ | 21,419 |  |  | $ | 11,925 |

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