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Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following represents the reclassifications out of accumulated other comprehensive (loss) income for the periods presented:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Affected Line item in the
Details about Accumulated Other |  | Amounts Reclassified from Accumulated |  | Amounts Reclassified from Accumulated |  | Statement Where Net Income is
Comprehensive Income Components |  | Other Comprehensive Income/(Loss) |  | Other Comprehensive Income/(Loss) |  | Presented
|  | (dollars in thousands) |  |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |  |
|  | 2017 |  | 2016 |  | 2017 |  | 2016 |  |
Sale of securities available-for-sale |  | $ | - |  |  | $ | 4,131 |  |  | $ | 1,596 |  |  | $ | 4,234 |  |  | Net gains on sales of securities available for sale
|  |  | - |  |  |  | (1,640 | ) |  |  | (579 | ) |  |  | (1,682 | ) |  | Income tax expense
|  |  | - |  |  |  | 2,491 |  |  |  | 1,017 |  |  |  | 2,552 |  |  |
Amortization of pension plan net actuarial losses |  |  | (103 | ) |  |  | (204 | ) |  |  | (309 | ) |  |  | (306 | ) |  | Salaries and employee benefits
|  |  | 42 |  |  |  | 83 |  |  |  | 126 |  |  |  | 124 |  |  | Income tax benefit
|  |  | (61 | ) |  |  | (121 | ) |  |  | (183 | ) |  |  | (182 | ) |  |
Total reclassification |  | $ | (61 | ) |  | $ | 2,370 |  |  | $ | 834 |  |  | $ | 2,370 |  |  |
Comprehensive Income (Loss) [Table Text Block] | Accumulated other comprehensive (loss) income (net of tax) at September 30, 2017 and December 31, 2016 consisted of the following:
|  | September 30, |  | December 31,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Securities available-for-sale |  | $ | 723 |  |  | $ | 933 |
Cash flow hedge |  |  | 97 |  |  |  | 52 |
Defined benefit pension and post-retirement plans |  |  | (3,649 | ) |  |  | (3,831 | )
Total accumulated other comprehensive loss |  | $ | (2,829 | ) |  | $ | (2,846 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e526-108580 + Details
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