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Income Taxes - Components of net deferred income tax benefits (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Deferred income tax benefits: |  |
Accrued deferred compensation | $ 84 | $ 78
Allowance for credit losses | 376 | 143
Accumulated depreciation | (22) | (16)
Other real estate owned |  | 36
Reserve for unfunded commitments | 102 | 9
Accounting standard 310-20 | (144) | (117)
Right of use asset | (132) | (171)
Lease liability | 132 | 171
Accumulated securities premium accretion | 228 | 214
Net unrealized depreciation on investment securities available for sale | 211 |
Net unrealized depreciation on investment securities available for sale |  | (466)
Net unrealized loss on Swaps | 121 | 261
Net deferred income tax benefits | $ 956 | $ 142

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