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Equity-based Compensation - Compensation expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Equity-based Compensation |  |  |  |
Total equity-based compensation | $ 892 | $ 94 | $ 1,893 | $ 192
Total unrecognized compensation cost related to options | 9,025 |  | $ 9,025 |
Weighted average period over which the unrecognized compensation cost is expected to be recognized |  |  | 2 years 6 months |
Research and development |  |  |  |
Equity-based Compensation |  |  |  |
Total equity-based compensation | 82 | 13 | $ 316 | 34
General and administrative |  |  |  |
Equity-based Compensation |  |  |  |
Total equity-based compensation | $ 810 | $ 81 | $ 1,577 | $ 158

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