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Accumulated Other Comprehensive Loss (Schedule of Reclassifications From Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Net gains/(losses) - other | $ 9 |  |  |  | $ (11) |  |  | $ 190 | $ 3
Tax (expense) benefit | (739) |  |  |  | (811) |  |  | (2,227) | (2,556)
Net income | 2,763 | $ 3,016 | $ 2,506 | $ (1,032) | 2,012 | $ 2,309 | $ 1,980 | 8,285 | 6,301
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Net income | (280) |  |  |  | (215) |  |  | (691) | (663)
Investment securities- with OTTI [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Gain on calls of securities |  |  |  |  |  |  |  | 145 | 0
Interest income (expense) on investment securities: taxable | 53 |  |  |  | 55 |  |  | 160 | 112
Tax (expense) benefit | (14) |  |  |  | (22) |  |  | (82) | (43)
Net income | 39 |  |  |  | 33 |  |  | 223 | 69
Investment Securities -All Other AFS [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Net gains/(losses) - other | (10) |  |  |  | (27) |  |  | (29) | (44)
Tax (expense) benefit | 3 |  |  |  | 15 |  |  | 8 | 17
Net income | (7) |  |  |  | (12) |  |  | (21) | (27)
Investment Securities HTM [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Interest income (expense) on investment securities: taxable | (86) |  |  |  | (90) |  |  | (200) | (262)
Tax (expense) benefit | 23 |  |  |  | 36 |  |  | 54 | 104
Net income | (63) |  |  |  | (54) |  |  | (146) | (158)
Pension Plan [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Tax (expense) benefit | 82 |  |  |  | 107 |  |  | 246 | 319
Net income | (220) |  |  |  | (160) |  |  | (660) | (482)
Pension Plan [Member] | Amortization of unrecognized loss [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Salaries and employee benefits | (300) |  |  |  | (264) |  |  | (900) | (792)
Pension Plan [Member] | Amortization of prior service costs [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Salaries and employee benefits | (2) |  |  |  | (3) |  |  | (6) | (9)
SERP [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Tax (expense) benefit | 10 |  |  |  | 14 |  |  | 32 | 43
Net income | (29) |  |  |  | (22) |  |  | (87) | (65)
SERP [Member] | Amortization of unrecognized loss [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Salaries and employee benefits | (40) |  |  |  | (37) |  |  | (121) | (110)
SERP [Member] | Amortization of prior service costs [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Salaries and employee benefits | $ 1 |  |  |  | $ 1 |  |  | $ 2 | $ 2

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