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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2017
Stockholders' Equity Note [Abstract] |
Schedule of the change in the components of the accumulated other comprehensive income (loss) |
|  | Nine months ended September 30, 2017 |
|  |  |  |  | Unrecognized Net |  |  | Accumulated |
|  | Unrealized |  |  | Pension and |  |  | Other |
|  | Gain (Loss) |  |  | Postretirement |  |  | Comprehensive |
(in thousands) |  | on Securities (1) |  |  | Costs (2) |  |  | Loss |
Balance at beginning of period |  | $ | (1,936 | ) |  | $ | (1,865 | ) |  | $ | (3,801 | )
Other comprehensive income, before reclassifications |  |  | 1,588 |  |  |  | 67 |  |  |  | 1,655 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Current period other comprehensive income, before tax |  |  | 1,588 |  |  |  | 67 |  |  |  | 1,655 |
Income tax expense |  |  | (604 | ) |  |  | (25 | ) |  |  | (629 | )
Current period other comprehensive income, net of tax |  |  | 984 |  |  |  | 42 |  |  |  | 1,026 |
Balance at end of period |  | $ | (952 | ) |  | $ | (1,823 | ) |  | $ | (2,775 | )
|  | Nine months ended September 30, 2016 |
|  |  |  |  | Unrecognized Net |  |  | Accumulated |
|  | Unrealized |  |  | Pension and |  |  | Other |
|  | Gain (Loss) |  |  | Postretirement |  |  | Comprehensive |
(in thousands) |  | on Securities (1) |  |  | Costs (2) |  |  | Loss |
Balance at beginning of period |  | $ | (591 | ) |  | $ | (1,427 | ) |  | $ | (2,018 | )
Other comprehensive income, before reclassifications |  |  | 2,884 |  |  |  | 59 |  |  |  | 2,943 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (602 | ) |  |  | 0 |  |  |  | (602 | )
Current period other comprehensive income, before tax |  |  | 2,282 |  |  |  | 59 |  |  |  | 2,341 |
Income tax expense |  |  | (867 | ) |  |  | (23 | ) |  |  | (890 | )
Current period other comprehensive income, net of tax |  |  | 1,415 |  |  |  | 36 |  |  |  | 1,451 |
Balance at end of period |  | $ | 824 |  |  | $ | (1,391 | ) |  | $ | (567 | )
| (1) | The pre-tax amounts reclassified from accumulated other comprehensive loss are included in gain on sale of investment securities in the consolidated statements of income.
| (2) | The pre-tax amounts reclassified from accumulated other comprehensive loss are included in the computation of net periodic pension cost.

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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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- References No definition available. + Details
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