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Accrued Expenses (Tables) | 3 Months Ended
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Mar. 31, 2022
Payables And Accruals [Abstract] |
Schedule of Accrued Expenses | Accrued expenses consist of the following:
|  | March 31, 2022 |  |  | December 31, 2021 |
Accrued payroll and bonus expenses |  | $ | 1,172 |  |  | $ | 771 |
Accrued other expenses |  |  | 642 |  |  |  | 272 |
Accrued clinical trial costs |  |  | 95 |  |  |  | 45 |
Accrued manufacturing expenses |  |  | 63 |  |  |  | 77 |
Total |  | $ | 1,972 |  |  | $ | 1,165 |

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