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Commitments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Future minimum payments        
2022 $ 109   $ 109  
2023 663   663  
2024 395   395  
Total lease payments 1,167   1,167  
Less: imputed interest (85)   (85)  
Total operating lease liabilities 1,082   1,082  
Operating leases        
Rent expense 200 $ 200 700 $ 500
Lease payments $ 200 $ 200 $ 700 $ 600