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Other Borrowings (Summary Of Short Term Borrowings) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Short Term [Member] |  |
Short-term Debt [Line Items] |  |
Balance at end of year |  |
Average outstanding balance during the year | $ 1 | $ 1
Average interest rate during the year | 0.00% | 0.00%
Reverse Repurchase Agreements [Member] |  |
Short-term Debt [Line Items] |  |
Maximum month-end outstanding balance |  | $ 5,000
Average outstanding balance during the year |  | $ 795
Average interest rate during the year | 0.00% | 1.76%

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