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Borrowed Funds (Short-term borrowings) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Securities Sold under Agreements to Repurchase [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum Month End Balance | $ 26,761 | $ 34,242 | $ 37,441 | $ 38,967
Average Balance | $ 26,569 | $ 32,957 | $ 30,755 | $ 34,467
Weighted Average Interest Rate During the Period | 0.09% | 0.09% | 0.04% | 0.09%
Federal Funds Purchased [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum Month End Balance | $ 7,070 | $ 16,200 | $ 7,070 | $ 16,200
Average Balance | $ 1,982 | $ 9,199 | $ 1,224 | $ 6,843
Weighted Average Interest Rate During the Period | 2.65% | 1.82% | 1.71% | 1.77%

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