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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 3 Months Ended
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Mar. 31, 2021
ACCUMULATED OTHER COMPREHENSIVE INCOME |
Schedule of Changes in Accumulated Other Comprehensive Income | The following tables summarize the changes within each classification of accumulated other comprehensive income for the three months ended March 31, 2021 and 2020 all shown net of tax: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gains and | ​ | ​ | ​ | ​ | ​
​ | ​ | Losses on | ​ | Defined | ​ | ​ | ​
​ | ​ | Available- | ​ | Benefit | ​ | ​ | ​
​ | ​ | for-Sales | ​ | Pension | ​ | ​ | ​
(dollars in thousands) |  | Securities |  | Items |  | Total
Balance at January 1, 2021 | ​ | $ | 29,182 | ​ | $ | (1,438) | ​ | $ | 27,744
Other comprehensive loss before reclassification | ​ | ​ | (12,084) | ​ | ​ | 0 | ​ | ​ | (12,084)
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | (595) | ​ | ​ | 45 | ​ | ​ | (550)
Net current period other comprehensive loss | ​ | ​ | (12,679) | ​ | ​ | 45 | ​ | ​ | (12,634)
Balance at March 31, 2021 | ​ | $ | 16,503 | ​ | $ | (1,393) | ​ | $ | 15,110
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gains and | ​ | ​ | ​ | ​ | ​
​ | ​ | Losses on | ​ | Defined | ​ | ​ | ​
​ | ​ | Available- | ​ | Benefit | ​ | ​ | ​
​ | ​ | for-Sales | ​ | Pension | ​ | ​ | ​
(dollars in thousands) |  | Securities |  | Items |  | Total
Balance at January 1, 2020 | ​ | $ | 13,607 | ​ | $ | (1,548) | ​ | $ | 12,059
Other comprehensive income before reclassification | ​ | ​ | 10,444 | ​ | ​ | 0 | ​ | ​ | 10,444
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | 0 | ​ | ​ | 47 | ​ | ​ | 47
Net current period other comprehensive income | ​ | ​ | 10,444 | ​ | ​ | 47 | ​ | ​ | 10,491
Balance at March 31, 2020 | ​ | $ | 24,051 | ​ | $ | (1,501) | ​ | $ | 22,550
​
Schedule of reclassification Accumulated other comprehensive income | Reclassifications out of accumulated comprehensive income for the three months ended March 31, 2021 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​
Details about |  | Amount |  | Affected Line Item
Accumulated Other | ​ | Reclassified From | ​ | in the Statement
Comprehensive | ​ | Accumulated Other | ​ | Where Net
Income Components | ​ | Comprehensive Income | ​ | Income is Presented
​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) | ​ | ​ | ​ | ​ | ​
Realized gains and losses on available-for-sale securities | ​ | $ | 753 | ​ | Net securities gains
Tax effect | ​ | ​ | (158) | ​ | Income tax expense
​ | ​ | ​ | 595 | ​ | Net of tax
Amortization of defined benefit pension items | ​ | $ | (60) | ​ | Other expense
Tax effect | ​ | ​ | 15 | ​ | Income tax expense
​ | ​ | ​ | (45) | ​ | Net of tax
Total reclassifications for the period | ​ | $ | 550 | ​ | Net income
​ Reclassifications out of accumulated comprehensive income for the three months ended March 31, 2020 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​
Details about |  | Amount |  | Affected Line Item
Accumulated Other | ​ | Reclassified From | ​ | in the Statement
Comprehensive | ​ | Accumulated Other | ​ | Where Net
Income Components | ​ | Comprehensive Income | ​ | Income is Presented
​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) | ​ | ​ | ​ | ​ | ​
Amortization of defined benefit pension items | ​ | $ | (63) | ​ | Other expense
Tax effect | ​ | ​ | 16 | ​ | Income tax expense
​ | ​ | ​ | (47) | ​ | Net of tax
Total reclassifications for the period | ​ | $ | (47) | ​ | Net income

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