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Leases (Schedule of Future Minimum Lease Payments under Finance Leases) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 247  
2023 220  
2024 164  
2025 158  
2026 150  
2027 and thereafter 463  
Total minimum lease payments 1,402  
Less amount representing interest (82)  
Present value of net minimum lease payments $ 1,320 $ 291