Income Taxes - Significant Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|---|
| Deferred tax assets: | |||
| Stock-based compensation | $ 2,333 | $ 1,349 | |
| Net operating loss carryforwards | 51,500 | 18,858 | |
| Credit carryforwards | 4,799 | 1,155 | |
| Fixed assets | 705 | 0 | |
| Accrued expenses | 5,205 | 580 | |
| Lease liability | 8,916 | 0 | |
| Total deferred tax assets | 73,458 | 21,942 | |
| Valuation allowance | (63,546) | (21,899) | $ (5,607) |
| Total net deferred tax assets | 9,912 | 43 | |
| Deferred tax liabilities: | |||
| Fixed assets | 0 | (43) | |
| Right of use asset | (9,912) | 0 | |
| Total deferred tax liability | (9,912) | (43) | |
| Total deferred tax assets (liabilities) | $ 0 | $ 0 |