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INCOME TAXES - Deferred tax assets and liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
DEFERRED TAX ASSETS: |  |
Allowance for loan losses | $ 2,604 | $ 2,382
Unfunded commitment reserve | 208 | 183
Premises and equipment | 743 | 686
Lease liabilities | 752 | 816
Other | 175 | 149
Total tax assets | 4,482 | 4,216
DEFERRED TAX LIABILITIES: |  |
Investment accretion | (51) | (88)
Unrealized investment security gains | (369) | (941)
Lease right-of-use assets | (704) | (780)
Accrued pension obligation | (4,098) | (646)
Other | (194) | (189)
Total tax liabilities | (5,416) | (2,644)
Net deferred tax asset (liability) | $ (934) |
Net deferred tax asset (liability) |  | $ 1,572

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