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INCOME TAXES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Components of income tax expense attributable to income from operations [Abstract] |  |  |
Federal | $ 4,413,000 | $ 4,603,000 | $ 1,732,000
State | 280,000 | 395,000 | 124,000
Total current | 4,693,000 | 4,998,000 | 1,856,000
Deferred expense/(benefit): |  |  |
Federal | (136,000) | (1,126,000) | 2,253,000
State | 50,000 | (438,000) | 345,000
Remeasurement of deferred tax assets | 0 | 0 | (445,000)
Total deferred | (86,000) | (1,564,000) | 2,153,000
Income tax expense | $ 4,607,000 | $ 3,434,000 | $ 4,009,000
Reconciliation of income tax expense [Abstract] |  |  |
Statutory federal tax rate | 21.00% | 21.00% | 21.00%
Tax computed at statutory rate | $ 5,013,000 | $ 3,999,000 | $ 4,963,000
Tax-exempt income | (395,000) | (424,000) | (430,000)
831(b) premium adjustment | (296,000) | (189,000) | (167,000)
Dividend exclusion | (5,000) | (7,000) | (7,000)
State taxes, net of Federal impact | 118,000 | (86,000) | 262,000
Nondeductible interest expense | 5,000 | 9,000 | 7,000
Remeasurement of deferred tax assets | 0 | 0 | (445,000)
Other items, net | 167,000 | 132,000 | (174,000)
Income tax expense | $ 4,607,000 | $ 3,434,000 | $ 4,009,000
Effective tax rate | 19.30% | 18.00% | 17.00%
Deferred tax assets: |  |  |
Allowance for loan losses | $ 5,393,000 | $ 6,046,000 |
Accrual for employee benefit plans | 47,000 | 92,000 |
Depreciation | 681,000 | 379,000 |
Deferred compensation and directors' fees | 1,045,000 | 765,000 |
Operating lease liabilities | 1,831,000 | 2,050,000 |
Purchase accounting adjustment – loans | 1,000 | 1,000 |
Purchase accounting adjustment – fixed assets | 149,000 | 149,000 |
Gain on deemed sale of securities | 54,000 | 71,000 |
Accounting for defined benefit pension and other benefit plans | 2,302,000 | 2,448,000 |
Nonaccrued interest | 687,000 | 695,000 |
Accrued expense | 158,000 | 179,000 |
Other items, net | 48,000 | 38,000 |
Total gross deferred tax assets | 12,396,000 | 12,913,000 |
Deferred tax liabilities: |  |  |
Deferred loan fees and costs | 274,000 | 592,000 |
Prepaid pension | 3,344,000 | 3,189,000 |
Net unrealized gains on securities available for sale | 3,124,000 | 468,000 |
Discount accretion | 50,000 | 24,000 |
Core deposit intangible | 1,353,000 | 1,213,000 |
REIT dividend | 616,000 | 922,000 |
Operating lease right-of-use assets | 1,831,000 | 2,050,000 |
Other | 168,000 | 103,000 |
Total gross deferred tax liabilities | 10,760,000 | 8,561,000 |
Net deferred tax asset | 1,636,000 | 4,352,000 |
Unrecognized tax benefits | 0 | 0 | $ 0
Accrued interest or penalties related to uncertain tax positions | $ 0 | $ 0 | $ 0

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