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Accumulated Other Comprehensive Loss | 12 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Loss. |
Accumulated Other Comprehensive Loss | 16. Accumulated Other Comprehensive Loss The activity in accumulated other comprehensive loss for the years ended December 31, 2022 and 2021, is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Accumulated Other Comprehensive Loss(1)
​ | ​ | ​ | ​ | ​ | Unrealized (losses) | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | gains on | ​ | ​ | ​
​ | ​ | Defined Benefit | ​ | available for sale | ​ | ​ | ​
​ |  | Pension Plan |  | securities |  | Total
Balance at December 31, 2021 | ​ | $ | (3,901) | ​ | $ | (2,734) | ​ | $ | (6,635)
Other comprehensive loss before reclassifications | ​ |  | (307) | ​ |  | (25,592) | ​ |  | (25,899)
Amounts reclassified from accumulated other comprehensive loss | ​ |  | 211 | ​ |  | 134 | ​ |  | 345
Period change | ​ |  | (96) | ​ |  | (25,458) | ​ |  | (25,554)
Balance at December 31, 2022 | ​ | $ | (3,997) | ​ | $ | (28,192) | ​ | $ | (32,189)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at December 31, 2020 | ​ | $ | (4,784) | ​ | $ | 993 | ​ | $ | (3,791)
Other comprehensive gain (loss) before reclassifications | ​ |  | 600 | ​ |  | (3,730) | ​ |  | (3,130)
Amounts reclassified from accumulated other comprehensive loss | ​ |  | 283 | ​ |  | 3 | ​ |  | 286
Period change | ​ |  | 883 | ​ |  | (3,727) | ​ |  | (2,844)
Balance at December 31, 2021 | ​ | $ | (3,901) | ​ | $ | (2,734) | ​ | $ | (6,635)
(1) | All amounts are net of tax. Related income tax expense or benefit is calculated using an income tax rate of 21.0%.
​ ​ Details about accumulated other comprehensive loss components are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Amount Reclassified from | ​ | ​
​ | ​ | Accumulated Other Comprehensive | ​ | ​
​ | ​ | Income for the Year Ended | ​ | Affected Line Item in the Consolidated
​ | ​ | December 31, | ​ | Statement of Income
​ | ​ | 2022 |  | 2021 |  | ​
Securities available for sale(1): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net securities losses reclassified into earnings | ​ | $ | (170) | ​ | $ | (4) |  | Net realized loss on sales and calls of securities
Related income tax expense | ​ |  | 36 | ​ |  | 1 |  | Provision for income taxes
Net effect on accumulated other comprehensive loss for the period | ​ |  | (134) | ​ |  | (3) |  |
Defined benefit pension plan(2): | ​ |  |  | ​ |  |  |  |
Amortization of net loss and prior service costs | ​ |  | (267) | ​ |  | (358) |  | Other non-interest expense
Related income tax expense | ​ |  | 56 | ​ |  | 75 |  | Provision for income taxes
Net effect on accumulated other comprehensive loss for the period | ​ |  | (211) | ​ |  | (283) |  |
Total reclassifications for the period | ​ | $ | (345) | ​ | $ | (286) |  |
(1) | For additional details related to unrealized gains and losses on securities and related amounts reclassified from accumulated other comprehensive loss see Note 3, “Available for Sale Securities.”
(2) | Included in the computation of net periodic pension cost. See Note 10, “Employee Benefits” for additional details.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI https://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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