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Operating Leases - Future Minimum Lease Payments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]    
2022 $ 440  
2023 261  
2024 269  
2025 277  
2026 285  
Thereafter 293  
Total 1,825  
Less: present value adjustment (231)  
Total lease liabilities $ 1,594 $ 433