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Commitments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Future minimum payments |  |  |  |
2023 | $ 279 |  | $ 279 |
2024 | 395 |  | 395 |
Total lease payments | 674 |  | 674 |
Less: imputed interest | (31) |  | (31) |
Total operating lease liabilities | 643 |  | 643 |
Operating leases |  |  |  |
Rent expense | 200 | $ 300 | 300 | $ 500
Lease payments | $ 200 | $ 300 | $ 300 | $ 500

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