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Accumulated Other Comprehensive (Loss) Income (Tables) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2017 | Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |
Accumulated Other Comprehensive (Loss) Income, Net of Taxes | The components of accumulated other comprehensive loss, net of taxes, are as follows:
(Dollars in thousands) |  | Unrealized Loss on Securities |  |  | Defined Benefit Plans |  |  | Accumulated Other Comprehensive Loss |
Balance—June 30, 2017 |  | $ | (1,073 | ) |  | $ | 62 |  |  | $ | (1,011 | )
Balance—December 31, 2016 |  | $ | (2,919 | ) |  | $ | 66 |  |  | $ | (2,853 | )
| The components of accumulated other comprehensive (loss) income, net of taxes, are as follows:
(Dollars in thousands) |  | Unrealized (Loss) Gain on Securities |  |  | Defined Benefit Plan Liability |  |  | Accumulated Other Comprehensive (Loss) Income |
Balance—December 31, 2016 |  | $ | (2,919 | ) |  | $ | 66 |  |  | $ | (2,853 | )
Balance—December 31, 2015 |  | $ | 1,565 |  |  | $ | 247 |  |  | $ | 1,812 |

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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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