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Comprehensive Income/Loss (Comprehensive Income/(Loss) Presented Net of Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2009
Equity [Abstract] |  |  |  |  |  |
Deferred Gain Loss On Cash Flow Hedge | $ 173 |  | $ 173 |  | $ 281 | $ 1,400
COMPREHENSIVE INCOME |  |  |  |  |  |
Change in fair value of securities available for sale, pre tax amount | 347 | $ (1,315) | 2,520 | $ 8,351 |  |
Change in fair value of securities available for sale, tax (expense) benefit | (152) | 499 | (1,001) | (3,248) |  |
Change in fair value of securities available for sale, after tax amount | 195 | (816) | 1,519 | 5,103 |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax | 11 | 0 | 13 | (27) |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax | (4) | 0 | (5) | 11 |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax | 7 | 0 | 8 | (16) |  |
Change in fair value of securities available for sale, pre tax amount | 336 | (1,315) | 2,507 | 8,378 |  |
Change in fair value of securities available for sale, tax (expense) benefit | (148) | 499 | (996) | (3,259) |  |
Change in fair value of securities available for sale, after tax amount | 188 | (816) | 1,511 | 5,119 |  |
Change in fair value of cash flow hedges, pre tax amount | 91 | 486 | (250) | (852) |  |
Change in fair value of cash flow hedges, tax (expense) benefit | (36) | (196) | 102 | 352 |  |
Change in fair value of cash flow hedges, after tax amount | 55 | 290 | (148) | (500) |  |
Less: net cash flow hedge losses reclassified into interest on borrowings expense, pre tax amount | (91) | (648) | (264) | (1,949) |  |
Less: net cash flow hedge losses reclassified into earnings, tax (expense) benefit | 37 | 264 | 108 | 796 |  |
Less: net cash flow hedge losses reclassified into interest on borrowings expense, after tax | (54) | (384) | (156) | (1,153) |  |
Net change in fair value of cash flow hedges, pre tax amount | 182 | 1,134 | 14 | 1,097 |  |
Net change in fair value of cash flow hedges, tax (expense) benefit | (73) | (460) | (6) | (444) |  |
Net change in fair value of cash flow hedges | 109 | 674 | 8 | 653 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax | (6) | (28) | (20) | (84) |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax | 2 | 11 | 8 | 33 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | (4) | (17) | (12) | (51) |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax | 69 | 61 | 208 | 183 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax | (28) | (25) | (85) | (75) |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | 41 | 36 | 123 | 108 |  |
Amortization of certain costs included in net periodic retirement costs, pre tax amount | 70 | 69 | 208 | 207 |  |
Amortization of certain costs included in net periodic retirement costs, tax (expense) benefit | (29) | (29) | (85) | (84) |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax | 41 | 40 | 123 | 123 |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax | 133 | 102 | 396 | 306 |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax | (55) | (43) | (162) | (126) |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 78 | 59 | 234 | 180 |  |
Total other comprehensive income, pre tax amount | 651 | (79) | 2,917 | 9,781 |  |
Total other comprehensive income, tax (expense) benefit | (276) | (4) | (1,164) | (3,829) |  |
Total other comprehensive income, after tax amount | $ 375 | $ (83) | $ 1,753 | $ 5,952 |  |

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