Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Payables And Accruals [Abstract] | ||
| Payroll and benefits | $ 5,097 | $ 2,105 |
| Consulting services | 694 | 263 |
| Legal services | 184 | 325 |
| Research and development | 14,762 | 4,782 |
| Facility costs | 62 | 52 |
| Total | $ 20,799 | $ 7,527 |