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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2020
Stockholders' Equity |
Stockholders' Equity | (12) Stockholders' Equity Accumulated Other Comprehensive Income (Loss) The following details the change in the components of the Company's accumulated other comprehensive loss for the years ended December 31, as indicated. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Unrecognized Net | ​ | Accumulated
​ | ​ | Unrealized | ​ | Pension and | ​ | Other
​ | ​ | Income (Loss) | ​ | Postretirement | ​ | Comprehensive
(in thousands) |  | on Securities (1) |  | Costs (2) |  | Income (Loss)
Balance, December 31, 2018 | ​ | $ | (3,455) | ​ | $ | (2,644) | ​ | $ | (6,099)
Other comprehensive income, before reclassifications | ​ |  | 4,304 | ​ |  | 79 | ​ |  | 4,383
Amounts reclassified from accumulated other comprehensive income (loss) | ​ |  | 40 | ​ |  | (1,455) | ​ |  | (1,415)
Other comprehensive income (loss), before tax | ​ |  | 4,344 | ​ |  | (1,376) | ​ |  | 2,968
Income tax (expense) benefit | ​ |  | (912) | ​ |  | 288 | ​ |  | (624)
Other comprehensive income (loss), net of tax | ​ |  | 3,432 | ​ |  | (1,088) | ​ |  | 2,344
Balance, December 31, 2019 | ​ | $ | (23) | ​ | $ | (3,732) | ​ | $ | (3,755)
Other comprehensive income, before reclassifications | ​ |  | 4,315 | ​ |  | 214 | ​ |  | 4,529
Amounts reclassified from accumulated other comprehensive income (loss) | ​ |  | (41) | ​ |  | 2,200 | ​ |  | 2,159
Other comprehensive income, before tax | ​ |  | 4,274 | ​ |  | 2,414 | ​ |  | 6,688
Income tax expense | ​ |  | (898) | ​ |  | (507) | ​ |  | (1,405)
Other comprehensive income, net of tax | ​ |  | 3,376 | ​ |  | 1,907 | ​ |  | 5,283
Balance, December 31, 2020 | ​ | $ | 3,353 | ​ | $ | (1,825) | ​ | $ | 1,528
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(1) | The pre-tax amounts reclassified from accumulated other comprehensive income (loss) income are included in gains (losses) on sale of investment securities in the consolidated statements of income.
(2) | The pre-tax amounts reclassified from accumulated other comprehensive income (loss) are included in the computation of net periodic pension cost. See Note 13.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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