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Commitments and Contingencies - Future Lease Payments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]    
Year One $ 92  
Year Two 92  
Year Three 92  
Year Four 62  
Year Five 62  
After Year Five 755  
Total undiscounted lease payments 1,155  
Less: imputed interest (491)  
Present value of lease payments $ 664 $ 130