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Leases - Maturity of Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Jan. 01, 2019
Leases [Abstract]    
2022 $ 230  
2023 225  
2024 236  
2025 262  
2026 110  
Total lease payments 1,063  
Less imputed interest (172)  
Total lease liabilities: $ 891 $ 1,200