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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 9 Months Ended
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Sep. 30, 2020
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 nine months ended September 30, 2020 and 2019, by component:
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended September 30, 2020 |  |  |  |  |
Net unrealized losses on investment securities: |  |  |  |  |
Net unrealized losses arising during the period | $ | (3,434) |  |  | $ | (919) |  |  | $ | (2,515) |
Less: Reclassification adjustments from AOCI realized in net income | 352 |  |  | 94 |  |  | 258 |
Net unrealized losses on investment securities | (3,082) |  |  | (825) |  |  | (2,257) |
Defined benefit plans: |  |  |  |  |
Amortization of net actuarial loss | 330 |  |  | 89 |  |  | 241 |
Amortization of net transition obligation | 5 |  |  | 1 |  |  | 4 |
Amortization of prior service cost | 3 |  |  | 1 |  |  | 2 |
Defined benefit plans, net | 338 |  |  | 91 |  |  | 247 |
Other comprehensive loss | $ | (2,744) |  |  | $ | (734) |  |  | $ | (2,010) |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended September 30, 2019 |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |
Net unrealized gains arising during the period | $ | 6,027 |  |  | $ | 1,615 |  |  | $ | 4,412 |
Less: Reclassification adjustments from AOCI realized in net income | (36) |  |  | (10) |  |  | (26) |
Net unrealized gains on investment securities | 5,991 |  |  | 1,605 |  |  | 4,386 |
Defined benefit plans: |  |  |  |  |
Amortization of net actuarial loss | 310 |  |  | 31 |  |  | 279 |
Amortization of net transition obligation | 5 |  |  | 3 |  |  | 2 |
Amortization of prior service cost | 4 |  |  | 2 |  |  | 2 |
Defined benefit plans, net | 319 |  |  | 36 |  |  | 283 |
Other comprehensive income | $ | 6,310 |  |  | $ | 1,641 |  |  | $ | 4,669 |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Nine Months Ended September 30, 2020 |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |
Net unrealized gains arising during the period | $ | 18,994 |  |  | $ | 5,087 |  |  | $ | 13,907 |
Less: Reclassification adjustments from AOCI realized in net income | 352 |  |  | 94 |  |  | 258 |
Net unrealized gains on investment securities | 19,346 |  |  | 5,181 |  |  | 14,165 |
Defined benefit plans: |  |  |  |  |
Net actuarial gains arising during the period | 427 |  |  | 114 |  |  | 313 |
Amortization of net actuarial loss | 867 |  |  | 230 |  |  | 637 |
Amortization of net transition obligation | 14 |  |  | 4 |  |  | 10 |
Amortization of prior service cost | 10 |  |  | 3 |  |  | 7 |
Defined benefit plans, net | 1,318 |  |  | 351 |  |  | 967 |
Other comprehensive income | $ | 20,664 |  |  | $ | 5,532 |  |  | $ | 15,132 |
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 nine months ended September 30, 2020 and 2019:
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended September 30, 2020 |  |  |  |  |
Balance at beginning of period | $ | 31,247 |  |  | $ | (5,696) |  |  | $ | 25,551 |
Other comprehensive income (loss) before reclassifications | (2,515) |  |  | — |  |  | (2,515) |
Reclassification adjustments from AOCI | 258 |  |  | 247 |  |  | 505 |
Total other comprehensive income (loss) | (2,257) |  |  | 247 |  |  | (2,010) |
Balance at end of period | $ | 28,990 |  |  | $ | (5,449) |  |  | $ | 23,541 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended September 30, 2019 |  |  |  |  |
Balance at beginning of period | $ | 10,418 |  |  | $ | (5,960) |  |  | $ | 4,458 |
Other comprehensive loss before reclassifications | 4,412 |  |  | — |  |  | 4,412 |
Reclassification adjustments from AOCI | (26) |  |  | 283 |  |  | 257 |
Total other comprehensive income | 4,386 |  |  | 283 |  |  | 4,669 |
Balance at end of period | $ | 14,804 |  |  | $ | (5,677) |  |  | $ | 9,127 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Nine Months Ended September 30, 2020 |  |  |  |  |
Balance at beginning of period | $ | 14,825 |  |  | $ | (6,416) |  |  | $ | 8,409 |
Other comprehensive income before reclassifications | 13,907 |  |  | 313 |  |  | 14,220 |
Reclassification adjustments from AOCI | 258 |  |  | 654 |  |  | 912 |
Total other comprehensive income | 14,165 |  |  | 967 |  |  | 15,132 |
Balance at end of period | $ | 28,990 |  |  | $ | (5,449) |  |  | $ | 23,541 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Nine Months Ended September 30, 2019 |  |  |  |  |
Balance at beginning of period | $ | (9,643) |  |  | $ | (6,450) |  |  | $ | (16,093) |
Impact of the adoption of new accounting standards | (3,100) |  |  | — |  |  | (3,100) |
Adjusted balance at beginning of period | (12,743) |  |  | (6,450) |  |  | (19,193) |
Other comprehensive loss before reclassifications | 27,573 |  |  | — |  |  | 27,573 |
Reclassification adjustments from AOCI | (26) |  |  | 773 |  |  | 747 |
Total other comprehensive income (loss) | 27,547 |  |  | 773 |  |  | 28,320 |
Balance at end of period | $ | 14,804 |  |  | $ | (5,677) |  |  | $ | 9,127 |
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 nine months ended September 30, 2020 and 2019:
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Three months ended September 30, |
(dollars in thousands) | 2020 |  | 2019 |
Sale of investment securities available-for-sale: |  |  |  |  |
Realized gains (losses) on securities available-for-sale | $ | (352) |  |  | $ | 36 |  |  | Investment securities gains (losses)
Tax effect | 94 |  |  | (10) |  |  | Income tax benefit (expense)
Net of tax | $ | (258) |  |  | $ | 26 |  |  |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |
Amortization of net actuarial loss | $ | (330) |  |  | $ | (310) |  |  | Salaries and employee benefits
Amortization of net transition obligation | (5) |  |  | (5) |  |  | Salaries and employee benefits
Amortization of prior service cost | (3) |  |  | (4) |  |  | Salaries and employee benefits
Total before tax | (338) |  |  | (319) |  |  |
Tax effect | 91 |  |  | 36 |  |  | Income tax benefit (expense)
Net of tax | $ | (247) |  |  | $ | (283) |  |  |
Total reclassification adjustments from AOCI for the period, net of tax | $ | (505) |  |  | $ | (257) |  |  |
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Nine months ended September 30, |
(dollars in thousands) | 2020 |  | 2019 |
Sale of investment securities available-for-sale: |  |  |  |  |
Realized gains (losses) on securities available-for-sale | $ | (352) |  |  | $ | 36 |  |  | Investment securities gains (losses)
Tax effect | 94 |  |  | (10) |  |  | Income tax benefit (expense)
Net of tax | $ | (258) |  |  | $ | 26 |  |  |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |
Amortization of net actuarial loss | $ | (867) |  |  | $ | (837) |  |  | Salaries and employee benefits
Amortization of net transition obligation | (14) |  |  | (14) |  |  | Salaries and employee benefits
Amortization of prior service cost | (10) |  |  | (13) |  |  | Salaries and employee benefits
Total before tax | (891) |  |  | (864) |  |  |
Tax effect | 237 |  |  | 91 |  |  | Income tax benefit (expense)
Net of tax | $ | (654) |  |  | $ | (773) |  |  |
Total reclassification adjustments from AOCI for the period, net of tax | $ | (912) |  |  | $ | (747) |  |  |

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