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Equity-based Compensation - Compensation expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Equity-based Compensation |  |  |  |
Total equity-based compensation | $ 777 | $ 72 | $ 2,670 | $ 264
Total unrecognized compensation cost related to options | 7,338 |  | $ 7,338 |
Weighted average period over which the unrecognized compensation cost is expected to be recognized |  |  | 2 years 2 months 12 days |
Research and development |  |  |  |
Equity-based Compensation |  |  |  |
Total equity-based compensation | 86 | (4) | $ 402 | 30
General and administrative |  |  |  |
Equity-based Compensation |  |  |  |
Total equity-based compensation | $ 691 | $ 76 | $ 2,268 | $ 234

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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