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Fixed Assets - Leases - Supplemental balance sheet and cash flow information (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Operating Lease |  |  |  |
Operating lease ROU assets, net |  | $ 256 |  | $ 322
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  | Property, Plant and Equipment, Net |  | Property, Plant and Equipment, Net
Lease Liabilities: |  |  |  |
Current lease liabilities |  | $ 78 |  | $ 133
Long term lease liabilities |  | 186 |  | 226
Total lease liabilities |  | $ 264 |  | $ 359
Weighted average remaining lease term (in years) |  | 2 years 3 months 18 days |  |
Weighted average discount rate |  | 5.30% |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |
Operating cash flows used in operating leases |  | $ 134 | $ 185 |
Change in operating lease liabilities | $ (9) | 25 | $ 25 |
Change in operating lease ROU assets | $ 5 | $ 39 |  |

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