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Accumulated Other Comprehensive Income ("AOCI") (Tables) | 6 Months Ended
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Jun. 30, 2020
Accumulated Other Comprehensive Income ("AOCI") |
Schedule of changes in AOCI by component | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2020 and 2019
​ |  | ​ |  | Unamortized |  | ​ |  | ​
​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | Gain on | ​ | ​ | ​ | ​
​ | ​ | Gains (Losses) on | ​ | Available- | ​ | ​ | ​ | ​
​ | ​ | Available- | ​ | for-Sale | ​ | Defined | ​ | ​
​ | ​ | for-Sale | ​ | Securities | ​ | Benefit | ​ | ​
​ | ​ | Securities | ​ | Reclassified | ​ | Pension | ​ | ​
​ | ​ | and I/O | ​ | to Held-to- | ​ | Plan | ​ | ​
​ | ​ | Strips | ​ | Maturity | ​ | Items(1) | ​ | Total
​ | ​ | (Dollars in thousands)
Beginning balance April 1, 2020, net of taxes | ​ | $ | 6,627 | ​ | $ | 289 | ​ | $ | (11,625) | ​ | $ | (4,709)
Other comprehensive loss before reclassification, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (395) | ​ |  | — | ​ |  | (10) | ​ |  | (405)
Amounts reclassified from other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (120) | ​ |  | (9) | ​ |  | 63 | ​ |  | (66)
Net current period other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (515) | ​ |  | (9) | ​ |  | 53 | ​ |  | (471)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance June 30, 2020, net of taxes | ​ | $ | 6,112 | ​ | $ | 280 | ​ | $ | (11,572) | ​ | $ | (5,180)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Beginning balance April 1, 2019, net of taxes | ​ | $ | (1,603) | ​ | $ | 326 | ​ | $ | (7,710) | ​ | $ | (8,987)
Other comprehensive income (loss) before reclassification, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 3,072 | ​ |  | — | ​ |  | (7) | ​ |  | 3,065
Amounts reclassified from other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (386) | ​ |  | (9) | ​ |  | 15 | ​ |  | (380)
Net current period other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 2,686 | ​ |  | (9) | ​ |  | 8 | ​ |  | 2,685
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance June 30, 2019, net of taxes | ​ | $ | 1,083 | ​ | $ | 317 | ​ | $ | (7,702) | ​ | $ | (6,302)
(1) | This AOCI component is included in the computation of net periodic benefit cost (see Note 9—Benefit Plans) and includes split-dollar life insurance benefit plan.
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2020 and 2019
​ |  | ​ |  | Unamortized |  | ​ |  | ​
​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | Gain on | ​ | ​ | ​ | ​
​ | ​ | Gains (Losses) on | ​ | Available- | ​ | ​ | ​ | ​
​ | ​ | Available- | ​ | for-Sale | ​ | Defined | ​ | ​
​ | ​ | for-Sale | ​ | Securities | ​ | Benefit | ​ | ​
​ | ​ | Securities | ​ | Reclassified | ​ | Pension | ​ | ​
​ | ​ | and I/O | ​ | to Held-to- | ​ | Plan | ​ | ​
​ | ​ | Strips | ​ | Maturity | ​ | Items(1) | ​ | Total
​ | ​ | (Dollars in thousands)
Beginning balance January 1, 2020, net of taxes | ​ | $ | 1,602 | ​ | $ | 298 | ​ | $ | (11,678) | ​ | $ | (9,778)
Other comprehensive income (loss) before reclassification, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 4,701 | ​ |  | — | ​ |  | (6) | ​ |  | 4,695
Amounts reclassified from other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (191) | ​ |  | (18) | ​ |  | 112 | ​ |  | (97)
Net current period other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 4,510 | ​ |  | (18) | ​ |  | 106 | ​ |  | 4,598
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance June 30, 2020, net of taxes | ​ | $ | 6,112 | ​ | $ | 280 | ​ | $ | (11,572) | ​ | $ | (5,180)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Beginning balance January 1, 2019, net of taxes | ​ | $ | (5,007) | ​ | $ | 344 | ​ | $ | (7,718) | ​ | $ | (12,381)
Other comprehensive income (loss) before reclassification, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 6,476 | ​ |  | — | ​ |  | (14) | ​ |  | 6,462
Amounts reclassified from other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | (386) | ​ |  | (27) | ​ |  | 30 | ​ |  | (383)
Net current period other comprehensive income (loss), | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
net of taxes | ​ |  | 6,090 | ​ |  | (27) | ​ |  | 16 | ​ |  | 6,079
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance June 30, 2019, net of taxes | ​ | $ | 1,083 | ​ | $ | 317 | ​ | $ | (7,702) | ​ | $ | (6,302)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) | This AOCI component is included in the computation of net periodic benefit cost (see Note 9—Benefit Plans) and includes split-dollar life insurance benefit plan.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Amounts Reclassified from | ​ | ​ |
​ | AOCI(1) | ​ | ​ |
​ | Three Months Ended | ​ | ​ |
​ | June 30, | ​ | Affected Line Item Where |
Details About AOCI Components | 2020 |  | 2019 |  | Net Income is Presented |
​ | (Dollars in thousands) |  | ​ | ​
Unrealized gains on available-for-sale securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
and I/O strips | $ | 170 | ​ | $ | 548 | ​ | Gain on sales of securities | ​
​ |  | (50) | ​ |  | (162) | ​ | Income tax expense | ​
​ |  | 120 | ​ |  | 386 | ​ | Net of tax | ​
Amortization of unrealized gain on securities available- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
for-sale that were reclassified to securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
held-to-maturity | ​ | 13 | ​ | ​ | 13 | ​ | Interest income on taxable securities | ​
​ |  | (4) | ​ |  | (4) | ​ | Income tax expense | ​
​ | ​ | 9 | ​ | ​ | 9 | ​ | Net of tax | ​
​ |  | ​ | ​ |  | ​ | ​ | ​ | ​
Amortization of defined benefit pension plan items (1) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Prior transition obligation |  | 15 | ​ |  | 24 | ​ | ​ | ​
Actuarial losses |  | (105) | ​ |  | (46) | ​ | ​ | ​
​ |  | (90) | ​ |  | (22) | ​ | Other noninterest expense | ​
​ |  | 27 | ​ |  | 7 | ​ | Income tax benefit | ​
​ |  | (63) | ​ |  | (15) |  | Net of tax | ​
Total reclassification for the period | $ | 66 | ​ | $ | 380 | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Amounts Reclassified from | ​ | ​ |
​ | AOCI(1) | ​ | ​ |
​ | Six Months Ended | ​ | ​ | ​
​ | June 30, | ​ | Affected Line Item Where |
Details About AOCI Components | 2020 |  | 2019 |  | Net Income is Presented |
​ | (Dollars in thousands) | ​ | ​ |
Unrealized gains on available-for-sale securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
and I/O strips | $ | 270 | ​ | $ | 548 |  | Gain on sales of securities | ​
​ |  | (79) | ​ |  | (162) |  | Income tax expense | ​
​ |  | 191 | ​ |  | 386 |  | Net of tax | ​
Amortization of unrealized gain on securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
available-for-sale that were reclassified to securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
held-to-maturity |  | 26 | ​ |  | 39 |  | Interest income on taxable securities | ​
​ |  | (8) | ​ |  | (12) |  | Income tax expense | ​
​ |  | 18 | ​ |  | 27 |  | Net of tax | ​
Amortization of defined benefit pension plan items (1) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Prior transition obligation |  | 30 | ​ |  | 49 | ​ | ​ | ​
Actuarial losses |  | (190) | ​ |  | (92) | ​ | ​ | ​
​ |  | (160) | ​ |  | (43) |  | Other noninterest expense | ​
​ |  | 48 | ​ |  | 13 |  | Income tax benefit | ​
​ |  | (112) | ​ |  | (30) |  | Net of tax | ​
Total reclassification from AOCI for the period | $ | 97 | ​ | $ | 383 | ​ | ​ | ​
​
(1) | This AOCI component is included in the computation of net periodic benefit cost (see Note 9—Benefit Plans) and includes split-dollar life insurance benefit plan.
Schedule of reclassifications out of AOCI into net income |

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