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Borrowings (Scheduled Maturities of Long-Term Debt) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Scheduled Maturities    
2021 $ 0  
2022 0  
2023 0  
2024 20,000  
2025 15,000  
Thereafter 0  
Long-term Debt, Total $ 35,000 $ 35,000
Weighted Average Interest Rate    
2021 0.00%  
2022 0.00%  
2023 0.00%  
2024 2.42%  
2025 2.41%  
Thereafter 0.00%  
Weighted average interest rate 2.42%