Share-based compensation - Share-based Compensation Expense (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
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| Total share-based compensation expense included in the consolidated statements of operations | ||
| Shares forfeited | $ 1,796,500 | |
| Total share-based compensation expense | 1,676,000 | $ 5,586,000 |
| Research and development | ||
| Total share-based compensation expense included in the consolidated statements of operations | ||
| Total share-based compensation expense | 116,000 | 2,523,000 |
| General and administrative | ||
| Total share-based compensation expense included in the consolidated statements of operations | ||
| Total share-based compensation expense | $ 1,560,000 | $ 3,063,000 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Value of forfeited shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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