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PENSION AND OTHER POSTRETIREMENT PLANS (Tables) | 12 Months Ended
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Dec. 31, 2020
PENSION AND OTHER POSTRETIREMENT PLANS |
Schedule of Changes in Projected Benefit Obligations and Plan Assets | Information as to the Company’s employee benefit plans at December 31, 2020 and 2019 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | SERP Benefits
(dollars in thousands) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Change in benefit obligation: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Beginning benefit obligation | ​ | $ | 2,715 | ​ | $ | 2,118 | ​ | $ | 991 | ​ | $ | 924
Interest cost | ​ |  | 75 | ​ |  | 87 | ​ |  | 27 | ​ |  | 37
Actuarial (gain) loss | ​ |  | 276 | ​ |  | 631 | ​ |  | 84 | ​ |  | 164
Benefits paid | ​ |  | (356) | ​ |  | (121) | ​ |  | (134) | ​ |  | (134)
Ending benefit obligation | ​ |  | 2,710 | ​ |  | 2,715 | ​ |  | 968 | ​ |  | 991
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Change in plan assets (primarily equity and fixed income investments and money market funds), at fair value: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Beginning plan assets | ​ |  | 2,472 | ​ |  | 2,151 | ​ |  | 914 | ​ |  | 885
Actual return | ​ |  | 233 | ​ |  | 415 | ​ |  | 99 | ​ |  | 163
Employer contribution | ​ |  | — | ​ |  | 27 | ​ |  | — | ​ |  | —
Benefits paid | ​ |  | (356) | ​ |  | (121) | ​ |  | (134) | ​ |  | (134)
Ending plan assets | ​ |  | 2,349 | ​ |  | 2,472 | ​ |  | 879 | ​ |  | 914
Funded status at end of year | ​ | $ | (361) | ​ | $ | (243) | ​ | $ | (89) | ​ | $ | (77)
Amounts Recognized in Accumulated Other Comprehensive Income | Amounts recognized in accumulated other comprehensive income consist of: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | SERP Benefits
(dollars in thousands) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Net actuarial loss | ​ | $ | 1,362 | ​ | $ | 1,464 | ​ | $ | 553 | ​ | $ | 597
Schedule of Amounts Recognized in Balance Sheet | Amounts recognized in the consolidated balance sheets consist of: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | SERP Benefits
(dollars in thousands) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Funded status included in other liabilities | ​ | $ | (361) | ​ | $ | (243) | ​ | $ | (89) | ​ | $ | (77)
Schedule of Components of Net Periodic Benefit Cost | Net period benefit cost and other amounts recognized in other comprehensive income (loss) include the following:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | SERP Benefits
(dollars in thousands) |  | 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Net pension expense: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Service cost | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Interest cost | ​ |  | 75 | ​ |  | 87 | ​ |  | 93 | ​ |  | 27 | ​ |  | 37 | ​ |  | 34
Expected return on plan assets | ​ |  | (140) | ​ |  | (137) | ​ |  | (138) | ​ |  | (51) | ​ |  | (55) | ​ |  | (61)
Recognized net actuarial loss | ​ |  | 171 | ​ |  | 132 | ​ |  | 193 | ​ |  | 80 | ​ |  | 73 | ​ |  | 73
Settlement cost | ​ |  | 115 | ​ |  | — | ​ |  | 224 | ​ |  | 0 | ​ |  | 0 | ​ |  | 0
Net pension expense | ​ | $ | 221 | ​ | $ | 82 | ​ | $ | 372 | ​ | $ | 56 | ​ | $ | 55 | ​ | $ | 46
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net (gain) loss | ​ | $ | 69 | ​ | $ | 353 | ​ | $ | (296) | ​ | $ | 36 | ​ | $ | 56 | ​ | $ | 27
Amortization of net loss | ​ |  | (171) | ​ |  | (132) | ​ |  | (193) | ​ |  | (80) | ​ |  | (73) | ​ |  | (73)
Total recognized in other comprehensive income (loss) | ​ |  | (102) | ​ |  | 221 | ​ |  | (489) | ​ |  | (44) | ​ |  | (17) | ​ |  | (46)
Total recognized in net pension expense and other comprehensive income (loss) | ​ | $ | 119 | ​ | $ | 303 | ​ | $ | (117) | ​ | $ | 12 | ​ | $ | 38 | ​ | $ | —
Schedule of Assumptions Used in Calculating the Net Benefit Obligation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | SERP Benefits |
​ |  | 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018 |
The following assumptions were used in calculating the net benefit obligation: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average discount rate |  | 2.08 | % | 2.98 | % | 4.08 | % | 2.08 | % | 2.98 | % | 4.08 | %
Rate of increase in future compensation |  | N/A |  | N/A |  | N/A |  | N/A |  | N/A |  | N/A | ​
Lump sum assumed interest rates First 5 years |  | 0.53 | % | 2.01 | % | 3.33 | % | N/A |  | N/A |  | N/A | ​
Next 15 years |  | 2.31 | % | 3.06 | % | 4.39 | % | N/A |  | N/A |  | N/A | ​
All future years |  | 3.09 | % | 3.65 | % | 4.72 | % | N/A |  | N/A |  | N/A | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
The following assumptions were used in calculating the net pension expense: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average discount rate |  | 2.98 | % | 4.08 | % | 3.46 | % | 2.98 | % | 4.08 | % | 3.46 | %
Rate of increase in future compensation |  | N/A |  | N/A |  | N/A |  | N/A |  | N/A |  | N/A | ​
Expected long-term rate of return |  | 6.50 | % | 6.50 | % | 6.50 | % | 6.50 | % | 6.50 | % | 6.50 | %
Schedule of Allocation of Plan Assets | The Company’s pension plan asset allocation at year-end 2020 and 2019, target allocation for 2021, and expected long-term rate of return by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Percentage of Plan | ​ | Weighted |
​ | ​ | Target | ​ | Assets | ​ | Average Expected |
​ | ​ | Allocation | ​ | at Year End | ​ | Long-Term Rate |
Asset Category |  | 2021 |  | 2020 | ​ |  | 2019 |  | of Return |
Equity securities |  | 55-65 | % | 65 | % | ​ | 61 | % | 8.85 | %
Debt securities |  | 35-45 | % | 31 | % | ​ | 36 | % | 3.00 | %
Other |  | 5-10 | % | 4 | % | ​ | 3 | % | 0.10 | %
Total |  | ​ | ​ | 100 | % | ​ | 100 | % | 6.50 | %
​ The Company’s SERP plan asset allocation at year-end 2020 and 2019, target allocation for 2021, and expected long-term rate of return by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Percentage of Plan | ​ | Weighted |
​ | ​ | Target | ​ | Assets | ​ | Average Expected |
​ | ​ | Allocation | ​ | at Year End | ​ | Long-Term Rate |
Asset Category |  | 2021 |  | 2020 |  | 2019 |  | of Return |
Equity securities |  | 55-65 | % | 64 | % | 65 | % | 8.85 | %
Debt securities |  | 35-45 | % | 34 | % | 34 | % | 3.00 | %
Other |  | 5-10 | % | 2 | % | 1 | % | 0.10 | %
Total |  | ​ | ​ | 100 | % | 100 | % | 6.50 | %
​
Schedule Of Fair Values Of Pension Plan and Postretirement Plan Assets By Asset Category | The fair values of the Company’s pension plan assets at December 31, 2020, by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Significant | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
Asset Category |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
(dollars in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity securities - US large cap common stocks | ​ | $ | 962 | ​ | $ | 962 | ​ | $ | — | ​ | $ | —
Equity securities - US mid cap stock mutual funds | ​ |  | 124 | ​ |  | 124 | ​ |  | — | ​ |  | —
Equity securities - US small cap stock mutual funds | ​ |  | 129 | ​ |  | 129 | ​ |  | — | ​ |  | —
Equity securities - international stock mutual funds | ​ |  | 202 | ​ |  | 202 | ​ |  | — | ​ |  | —
Equity securities - emerging markets stock mutual funds | ​ |  | 105 | ​ |  | 105 | ​ |  | — | ​ |  | —
Debt securities - intermediate term bond mutual funds | ​ |  | 526 | ​ |  | 526 | ​ |  | — | ​ |  | —
Debt securities - short term bond mutual funds | ​ |  | 205 | ​ |  | 205 | ​ |  | — | ​ |  | —
Cash - money market account | ​ |  | 93 | ​ |  | 93 | ​ |  | — | ​ |  | —
Total | ​ | $ | 2,346 | ​ | $ | 2,346 | ​ | $ | — | ​ | $ | —
The fair values of the Company’s pension plan assets at December 31, 2019, by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Significant | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
Asset Category |  | Total |  | (Level 1) |  | (Level 2 ) |  | (Level 3)
(dollars in thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Equity securities - US large cap common stocks | ​ | $ | 912 | ​ | $ | 912 | ​ | $ | — | ​ | $ | —
Equity securities - US mid cap stock mutual funds | ​ |  | 115 | ​ |  | 115 | ​ |  | — | ​ |  | —
Equity securities - US small cap stock mutual funds | ​ |  | 119 | ​ |  | 119 | ​ |  | — | ​ |  | —
Equity securities - international stock mutual funds | ​ |  | 257 | ​ |  | 257 | ​ |  | — | ​ |  | —
Equity securities - emerging markets stock mutual funds | ​ |  | 111 | ​ |  | 111 | ​ |  | — | ​ |  | —
Debt securities - intermediate term bond mutual funds | ​ |  | 402 | ​ |  | 402 | ​ |  | — | ​ |  | —
Debt securities - short term bond mutual funds | ​ |  | 480 | ​ |  | 480 | ​ |  | — | ​ |  | —
Cash - money market account | ​ |  | 74 | ​ |  | 74 | ​ |  | — | ​ |  | —
Total | ​ | $ | 2,470 | ​ | $ | 2,470 | ​ | $ | — | ​ | $ | —
The fair values of the Company’s SERP assets at December 31, 2020, by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Significant | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
Asset Category |  | Total |  | (Level 1) |  | (Level 2 ) |  | (Level 3)
(dollars in thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Equity securities - US large cap common stocks | ​ | $ | 360 | ​ | $ | 360 | ​ | $ | 0 | ​ | $ | 0
Equity securities - US mid cap stock mutual funds | ​ |  | 23 | ​ |  | 23 | ​ |  | 0 | ​ |  | 0
Equity securities - US small cap stock mutual funds | ​ |  | 72 | ​ |  | 72 | ​ |  | 0 | ​ |  | 0
Equity securities - emerging markets stock mutual funds | ​ |  | 37 | ​ |  | 37 | ​ |  | 0 | ​ |  | 0
Equity securities - international stock mutual funds | ​ |  | 72 | ​ |  | 72 | ​ |  | 0 | ​ |  | 0
Debt securities - intermediate term bond mutual funds | ​ |  | 216 | ​ |  | 216 | ​ |  | 0 | ​ |  | 0
Debt securities - short term bond mutual funds | ​ |  | 82 | ​ |  | 82 | ​ |  | 0 | ​ |  | 0
Cash - money market account | ​ |  | 16 | ​ |  | 16 | ​ |  | 0 | ​ |  | 0
Total | ​ | $ | 878 | ​ | $ | 878 | ​ | $ | 0 | ​ | $ | 0
The fair values of the Company’s SERP assets at December 31, 2019, by asset category are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Significant | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
Asset Category |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
(dollars in thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Equity securities - US large cap common stocks | ​ | $ | 353 | ​ | $ | 353 | ​ | $ | — | ​ | $ | —
Equity securities - US mid cap stock mutual funds | ​ |  | 46 | ​ |  | 46 | ​ |  | — | ​ |  | —
Equity securities - US small cap stock mutual funds | ​ |  | 47 | ​ |  | 47 | ​ |  | — | ​ |  | —
Equity securities - emerging markets stock mutual funds | ​ |  | 43 | ​ |  | 43 | ​ |  | — | ​ |  | —
Equity securities - international stock mutual funds | ​ |  | 100 | ​ |  | 100 | ​ |  | — | ​ |  | —
Debt securities - intermediate term bond mutual funds | ​ |  | 156 | ​ |  | 156 | ​ |  | — | ​ |  | —
Debt securities - short term bond mutual funds | ​ |  | 155 | ​ |  | 155 | ​ |  | — | ​ |  | —
Cash - money market account | ​ |  | 13 | ​ |  | 13 | ​ |  | — | ​ |  | —
Total | ​ | $ | 913 | ​ | $ | 913 | ​ | $ | — | ​ | $ | —
Schedule of Expected Benefit Payments | The following benefit payments are expected to be paid over the next ten years: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension | ​ | SERP
Plan Year |  | Benefits |  | Benefits
(dollars in thousands) | ​ | ​ | ​ | ​ | ​ | ​
2021 | ​ | $ | 212 | ​ | $ | 131
2022 | ​ |  | 205 | ​ |  | 125
2023 | ​ |  | 214 | ​ |  | 117
2024 | ​ |  | 192 | ​ |  | 109
2025 | ​ |  | 196 | ​ |  | 99
2026-2030 | ​ |  | 839 | ​ |  | 329

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