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Leased Assets (Schedule of operating lease liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 244  
2023 213  
2024 215  
2025 160  
2026 160  
Thereafter 1,280  
Total undiscounted future minimum lease payments 2,272  
Less: Difference between undiscounted lease payments & the present value of future lease payments (547)  
Total operating lease liabilities $ 1,725 $ 2,175