| Commitments and Contingencies - Schedule of supplemental cash flow information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 
|---|---|---|
| Sep. 30, 2023 | Sep. 30, 2023 | |
| Commitments and Contingencies | ||
| Operating cash outflows from operating leases | $ 43 | $ 129 | 
| X | ||||||||||
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- References No definition available. 
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| X | ||||||||||
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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