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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 6 Months Ended
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Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of components of other comprehensive income (loss) | The following tables present the components of other comprehensive income for the three and six months ended June 30, 2021 and 2020, by component:
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended June 30, 2021 |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |
Net unrealized gains arising during the period | $ | 2,407 |  |  | $ | 643 |  |  | $ | 1,764 |
Less: Reclassification adjustments from AOCI realized in net income | (50) |  |  | (13) |  |  | (37) |
Net unrealized gains on investment securities | 2,357 |  |  | 630 |  |  | 1,727 |
Defined benefit plans: |  |  |  |  |
Amortization of net actuarial loss | 272 |  |  | 87 |  |  | 185 |
Amortization of net transition obligation | 4 |  |  | 1 |  |  | 3 |
Defined benefit plans, net | 276 |  |  | 88 |  |  | 188 |
Other comprehensive income | $ | 2,633 |  |  | $ | 718 |  |  | $ | 1,915 |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended June 30, 2020 |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |
Net unrealized gains arising during the period | $ | 8,570 |  |  | $ | 2,295 |  |  | $ | 6,275 |
Less: Reclassification adjustments from AOCI realized in net income | — |  |  | — |  |  | — |
Net unrealized gains on investment securities | 8,570 |  |  | 2,295 |  |  | 6,275 |
Defined benefit plans: |  |  |  |  |
Amortization of net actuarial loss | 269 |  |  | 70 |  |  | 199 |
Amortization of net transition obligation | 4 |  |  | 1 |  |  | 3 |
Amortization of prior service cost | 3 |  |  | 1 |  |  | 2 |
Defined benefit plans, net | 276 |  |  | 72 |  |  | 204 |
Other comprehensive income | $ | 8,846 |  |  | $ | 2,367 |  |  | $ | 6,479 |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Six Months Ended June 30, 2021 |  |  |  |  |
Net unrealized losses on investment securities: |  |  |  |  |
Net unrealized losses arising during the period | $ | (21,212) |  |  | $ | (5,675) |  |  | $ | (15,537) |
Less: Reclassification adjustments from AOCI realized in net income | (50) |  |  | (13) |  |  | (37) |
Net unrealized losses on investment securities | (21,262) |  |  | (5,688) |  |  | (15,574) |
Defined benefit plans: |  |  |  |  |
Amortization of net actuarial loss | 518 |  |  | 153 |  |  | 365 |
Amortization of net transition obligation | 9 |  |  | 2 |  |  | 7 |
Defined benefit plans, net | 527 |  |  | 155 |  |  | 372 |
Other comprehensive loss | $ | (20,735) |  |  | $ | (5,533) |  |  | $ | (15,202) |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Six Months Ended June 30, 2020 |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |
Net unrealized gains arising during the period | $ | 22,428 |  |  | $ | 6,006 |  |  | $ | 16,422 |
Less: Reclassification adjustments from AOCI realized in net income | — |  |  | — |  |  | — |
Net unrealized gains on investment securities | 22,428 |  |  | 6,006 |  |  | 16,422 |
Defined benefit plans: |  |  |  |  |
Net actuarial gains arising during the period | 427 |  |  | 114 |  |  | 313 |
Amortization of net actuarial loss | 537 |  |  | 142 |  |  | 395 |
Amortization of net transition obligation | 9 |  |  | 2 |  |  | 7 |
Amortization of prior service cost | 7 |  |  | 2 |  |  | 5 |
Defined benefit plans, net | 980 |  |  | 260 |  |  | 720 |
Other comprehensive income | $ | 23,408 |  |  | $ | 6,266 |  |  | $ | 17,142 |
Schedule of changes in each component of AOCI, net of tax | The following tables present the changes in each component of AOCI, net of tax, for the three and six months ended June 30, 2021 and 2020:
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended June 30, 2021 |  |  |  |  |
Balance at beginning of period | $ | 9,350 |  |  | $ | (6,339) |  |  | $ | 3,011 |
Other comprehensive income before reclassifications | 1,764 |  |  | — |  |  | 1,764 |
Reclassification adjustments from AOCI | (37) |  |  | 188 |  |  | 151 |
Total other comprehensive income | 1,727 |  |  | 188 |  |  | 1,915 |
Balance at end of period | $ | 11,077 |  |  | $ | (6,151) |  |  | $ | 4,926 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended June 30, 2020 |  |  |  |  |
Balance at beginning of period | $ | 24,972 |  |  | $ | (5,900) |  |  | $ | 19,072 |
Other comprehensive income before reclassifications | 6,275 |  |  | — |  |  | 6,275 |
Reclassification adjustments from AOCI | — |  |  | 204 |  |  | 204 |
Total other comprehensive income | 6,275 |  |  | 204 |  |  | 6,479 |
Balance at end of period | $ | 31,247 |  |  | $ | (5,696) |  |  | $ | 25,551 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Six Months Ended June 30, 2021 |  |  |  |  |
Balance at beginning of period | $ | 26,651 |  |  | $ | (6,523) |  |  | $ | 20,128 |
Other comprehensive income before reclassifications | (15,537) |  |  | — |  |  | (15,537) |
Reclassification adjustments from AOCI | (37) |  |  | 372 |  |  | 335 |
Total other comprehensive income (loss) | (15,574) |  |  | 372 |  |  | (15,202) |
Balance at end of period | $ | 11,077 |  |  | $ | (6,151) |  |  | $ | 4,926 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Six Months Ended June 30, 2020 |  |  |  |  |
Balance at beginning of period | $ | 14,825 |  |  | $ | (6,416) |  |  | $ | 8,409 |
Other comprehensive loss before reclassifications | 16,422 |  |  | 313 |  |  | 16,735 |
Reclassification adjustments from AOCI | — |  |  | 407 |  |  | 407 |
Total other comprehensive income (loss) | 16,422 |  |  | 720 |  |  | 17,142 |
Balance at end of period | $ | 31,247 |  |  | $ | (5,696) |  |  | $ | 25,551 |
Schedule of amounts reclassified out of each component of AOCI | The following table presents the amounts reclassified out of each component of AOCI for the three and six months ended June 30, 2021 and 2020:
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Three months ended June 30, |
(dollars in thousands) | 2021 |  | 2020 |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |
Amortization of net actuarial loss | $ | (272) |  |  | $ | (269) |  |  | Other operating expense - other
Amortization of net transition obligation | (4) |  |  | (4) |  |  | Other operating expense - other
Amortization of prior service cost | — |  |  | (3) |  |  | Other operating expense - other
Total before tax | (276) |  |  | (276) |  |  |
Tax effect | 88 |  |  | 72 |  |  | Income tax benefit (expense)
Net of tax | $ | (188) |  |  | $ | (204) |  |  |
Total reclassification adjustments from AOCI for the period, net of tax | $ | (151) |  |  | $ | (204) |  |  |
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Six months ended June 30, |
(dollars in thousands) | 2021 |  | 2020 |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |
Amortization of net actuarial loss | $ | (518) |  |  | $ | (537) |  |  | Other operating expense - other
Amortization of net transition obligation | (9) |  |  | (9) |  |  | Other operating expense - other
Amortization of prior service cost | — |  |  | (7) |  |  | Other operating expense - other
Total before tax | (527) |  |  | (553) |  |  |
Tax effect | 155 |  |  | 146 |  |  | Income tax benefit (expense)
Net of tax | $ | (372) |  |  | $ | (407) |  |  |
Total reclassification adjustments from AOCI for the period, net of tax | $ | (335) |  |  | $ | (407) |  |  |

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