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Leases - Maturities of Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Maturities of operating lease liabilities    
Remainder of 2022 $ 174  
2023 173  
Total lease payments 347  
Less: imputed interest 9  
Total lease liabilities $ 338 $ 279
Weighted-average remaining lease term at end of period (in years) 10 months 24 days  
Weighted-average discount rate at end of period 5.10%