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EMPLOYEE BENEFIT PLANS (Tables) | 12 Months Ended
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Dec. 31, 2020
Pension Plans |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Change in projected benefit obligation: | ​ | ​ | ​ | ​ | ​ | ​
Projected benefit obligation at beginning of year | ​ | $ | 8,926 |  | $ | 8,009
Service cost | ​ |  | — |  | ​ | —
Interest cost | ​ |  | 282 |  | ​ | 331
Actuarial loss | ​ |  | 913 |  | ​ | 1,068
Benefits paid | ​ |  | (319) |  | ​ | (300)
Settlements | ​ |  | (152) |  | ​ | (182)
Projected benefit obligation at end of year | ​ |  | 9,650 |  | ​ | 8,926
​ | ​ | ​ | ​ | ​ | ​ | ​
Change in fair value of plan assets: | ​ |  |  |  | ​ |
Fair value of plan assets at beginning of year | ​ |  | 11,078 |  | ​ | 9,990
Expected return on plan assets | ​ |  | 1,433 |  | ​ | 1,570
Contributions by employer | ​ |  | — |  | ​ | —
Benefits paid | ​ |  | (319) |  | ​ | (300)
Settlements | ​ |  | (152) |  | ​ | (182)
Fair value of plan assets at end of year | ​ |  | 12,040 |  | ​ | 11,078
​ | ​ | ​ | ​ | ​ | ​ | ​
Overfunded status | ​ | $ | (2,390) |  | $ | (2,152)
​ | ​ | ​ | ​ | ​ | ​ | ​
Amounts recognized in consolidated balance sheet: | ​ |  |  |  | ​ |
Other assets | ​ | $ | 2,390 |  | $ | 2,152
Schedule of Net Benefit Costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Interest cost | ​ | $ | 282 | ​ | $ | 331
Expected return on plan assets | ​ |  | (708) | ​ |  | (638)
Settlement Charge | ​ |  | — | ​ |  | —
Net periodic pension benefit credit | ​ | $ | (426) | ​ | $ | (307)
​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Net actuarial loss | ​ | $ | 178 | ​ | $ | 145
Settlement charge | ​ |  | — | ​ |  | —
Net period pension benefit credit | ​ |  | (426) | ​ |  | (307)
Total recognized in net periodic benefit (credit) cost and other comprehensive income | ​ | $ | (248) | ​ | $ | (162)
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Net actuarial loss | ​ | $ | 178 | ​ | $ | 145
Settlement charge | ​ |  | — | ​ |  | —
Prior service cost | ​ |  | 893 | ​ |  | 748
Total accumulated other comprehensive loss (pre-tax) | ​ | $ | 1,071 | ​ | $ | 893
Schedule of Assumptions Used | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2020 |  | ​ | 2019 |
Projected benefit obligation |  |  |  | ​ |  | ​
Discount rate |  | 2.46 | % | ​ | 3.23 | %
Net periodic pension cost | ​ | ​ | ​ | ​ | ​ | ​
Discount rate |  | 3.23 | % | ​ | 4.23 | %
Long-term rate of return on plan assets |  | 6.00 |  | ​ | 6.50 | ​
Schedule of Allocation of Plan Assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2020
(in thousands) |  | Total |  | Level 1 |  | Level 2
Equity mutual funds: | ​ | ​ |  |  | ​ |  |  | ​ |
Large-cap | ​ | $ | 2,364 | ​ | $ | 2,364 | ​ | $ | —
Mid-cap | ​ |  | 744 | ​ |  | 744 | ​ |  | —
Small-cap | ​ |  | 765 | ​ |  | 765 | ​ |  | —
International | ​ |  | 1,499 | ​ |  | 1,499 | ​ |  |
Fixed income funds: | ​ |  |  | ​ |  |  | ​ |  |
Fixed-income - core plus | ​ |  | 3,880 | ​ |  | 3,880 | ​ |  | —
Intermediate duration | ​ |  | 1,338 | ​ |  | 1,338 | ​ |  | —
Common stock | ​ |  | 510 | ​ |  | 510 | ​ |  | —
Common/collective trusts - large-cap | ​ |  | 620 | ​ |  | — | ​ |  | 620
Cash equivalents - money market | ​ |  | 320 | ​ |  | 320 | ​ |  | —
Total | ​ | $ | 12,040 | ​ | $ | 11,420 | ​ | $ | 620
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019
(in thousands) |  | Total |  | Level 1 |  | Level 2
Equity mutual funds: |  | ​ |  |  | ​ |  |  | ​ |
Large-cap | ​ | $ | 2,144 | ​ | $ | 2,144 | ​ | $ | —
Mid-cap | ​ |  | 590 | ​ |  | 590 | ​ |  | —
Small-cap | ​ |  | 557 | ​ |  | 557 | ​ |  | —
International | ​ |  | 1,009 | ​ |  | 1,009 | ​ |  |
Fixed income funds: | ​ |  |  | ​ |  |  | ​ |  |
Fixed-income - core plus | ​ |  | 4,028 | ​ |  | 4,028 | ​ |  | —
Intermediate duration | ​ |  | 1,371 | ​ |  | 1,371 | ​ |  | —
Common stock | ​ |  | 574 | ​ |  | 574 | ​ |  | —
Common/collective trusts - large-cap | ​ |  | 566 | ​ |  | — | ​ |  | 566
Cash equivalents - money market | ​ |  | 230 | ​ |  | 230 | ​ |  | —
Total | ​ | $ | 11,069 | ​ | $ | 10,503 | ​ | $ | 566
Schedule of Expected Benefit Payments | ​
​ | ​ | ​ | ​
(in thousands) |  | Payments
2021 | ​ | $ | 354
2022 | ​ |  | 372
2023 | ​ |  | 369
2024 | ​ |  | 384
2025 | ​ |  | 379
2026-2030 | ​ |  | 2,321
Total | ​ | $ | 4,179
Non-qualified Supplemental Executive Retirement Plan |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Change in benefit obligation: |  | ​ |  |  | ​ |
Projected benefit obligation at beginning of year | ​ | $ | 2,979 | ​ | $ | 3,033
Service cost | ​ |  | — | ​ |  | —
Interest cost | ​ |  | 81 | ​ |  | 103
Actuarial loss | ​ |  | 202 | ​ |  | 221
Benefits paid | ​ |  | (293) | ​ |  | (378)
Projected benefit obligation at end of year | ​ | $ | 2,969 | ​ | $ | 2,979
​ | ​ | ​ | ​ | ​ | ​ | ​
Change in fair value of plan assets: | ​ |  |  | ​ |  |
Fair value of plan assets at beginning of year | ​ | $ | — | ​ | $ | —
Expected return on plan assets | ​ |  | — | ​ |  | —
Contributions by employer | ​ |  | 293 | ​ |  | 378
Benefits paid | ​ |  | (293) | ​ |  | (378)
Fair value of plan assets at end of year | ​ | $ | — | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Underfunded status | ​ | $ | 2,969 | ​ | $ | 2,979
​ | ​ | ​ | ​ | ​ | ​ | ​
Amounts recognized in consolidated balance sheet | ​ |  |  | ​ |  |
Other liabilities | ​ | $ | 2,969 | ​ | $ | 2,979
Schedule of Net Benefit Costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Interest cost | ​ | $ | 81 | ​ | $ | 103
Expected return on plan assets | ​ |  | — | ​ |  | —
Amortization of unrecognized actuarial loss | ​ |  | 42 | ​ |  | 15
Net periodic benefit cost | ​ | $ | 123 | ​ | $ | 118
​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Net actuarial loss | ​ | $ | 202 | ​ | $ | 220
Amortization of unrecognized actuarial loss | ​ |  | (42) | ​ |  | (15)
Total recognized in net periodic benefit cost and other comprehensive loss | ​ | $ | 160 | ​ | $ | 205
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2020 |  | 2019
Accumulated other comprehensive loss at beginning of the year (pre-tax) | ​ | $ | 619 | ​ | $ | 414
Actuarial loss | ​ |  | 202 | ​ |  | 220
Amortization of actuarial loss | ​ |  | (42) | ​ |  | (15)
Accumulated other comprehensive loss at end of year (pre-tax) | ​ | $ | 779 | ​ | $ | 619
Schedule of Assumptions Used | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | 2020 |  | 2019 |
Discount rate beginning of year |  | 2.65 | % | 3.83 | %
Discount rate end of year |  | 1.56 |  | 2.65 | ​
Schedule of Expected Benefit Payments | ​
​ | ​ | ​ | ​
(in thousands) |  | Payments
2021 | ​ | $ | 260
2022 | ​ |  | 260
2023 | ​ |  | 260
2024 | ​ |  | 260
2025 | ​ |  | 260
2026-2037 | ​ |  | 2,018
Total | ​ | $ | 3,318

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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