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Borrowed Funds (Short-term borrowings) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Securities Sold under Agreements to Repurchase [Member] |  |
Short-term Debt [Line Items] |  |
Maximum Month End Balance | $ 37,441 | $ 63,133
Quarter to Date Average Balance | $ 31,406 | $ 38,036
Weighted Average Interest Rate During the Period | 0.10% | 0.10%
Federal Funds Purchased [Member] |  |
Short-term Debt [Line Items] |  |
Maximum Month End Balance | $ 7,070 | $ 16,200
Quarter to Date Average Balance | $ 687 | $ 3,741
Weighted Average Interest Rate During the Period | 2.60% | 1.90%

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