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Accrued Expenses and Other Current Liabilities | 3 Months Ended
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Mar. 31, 2022
Payables and Accruals [Abstract] |
Accrued Expenses and Other Current Liabilities | Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities as of March 31, 2022 and December 31, 2021 were comprised as follows (in thousands):
| March 31, 2022 |  | December 31, 2021
Manufacturing | $ | 2,700 |  | $ | 3,427
Contract research | 1,940 |  | 2,542
Leasehold improvements | 1,455 |  | —
Employee compensation and benefits | 1,148 |  | 2,200
Professional fees | 816 |  | 433
Other | 130 |  |  | 163 |
Total accrued expenses and other current liabilities | $ | 8,189 |  | $ | 8,765

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