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Other comprehensive loss | 6 Months Ended
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Jun. 30, 2023
Other comprehensive loss |
Other comprehensive loss | 2. Other comprehensive loss: The components of other comprehensive loss and their related tax effects are reported in the consolidated statements of income and comprehensive income (loss). The accumulated other comprehensive loss included in the consolidated balance sheets relates to net unrealized gains and losses on investment securities available for sale, benefit plan adjustments and adjustments to derivative fair values. ​ The components of accumulated other comprehensive loss included in stockholders’ equity at June 30, 2023 and December 31, 2022 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) |  | ​ | June 30, 2023 |  | ​ | December 31, 2022 |
Net unrealized loss on investment securities available for sale | ​ | $ | (60,643) | ​ | $ | (66,250) | ​
Income tax benefit | ​ |  | (13,060) | ​ |  | (14,266) | ​
Net of income taxes | ​ |  | (47,583) | ​ |  | (51,984) | ​
Benefit plan adjustments | ​ |  | (5,499) | ​ |  | (5,499) | ​
Income tax benefit | ​ |  | (1,184) | ​ |  | (1,184) | ​
Net of income taxes | ​ |  | (4,315) | ​ |  | (4,315) | ​
Derivative adjustments | ​ |  | 32 | ​ |  | (47) | ​
Income tax expense (benefit) | ​ |  | 7 | ​ |  | (10) | ​
Net of income taxes | ​ |  | 25 | ​ |  | (37) | ​
Accumulated other comprehensive loss | ​ | $ | (51,873) | ​ | $ | (56,336) | ​
​

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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://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//220/tableOfContent + Details
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