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INCOME TAXES, Provision for Income Taxes Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Provision for income taxes reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Provision at statutory rates on pre-tax income |  |  |  |  |  |  |  |  | $ 6,377 | $ 4,895 | $ 4,502
Effect of tax-exempt income |  |  |  |  |  |  |  |  | (936) | (920) | (955)
Low income housing tax credits |  |  |  |  |  |  |  |  | (141) | (141) | (141)
Bank owned life insurance |  |  |  |  |  |  |  |  | (146) | (131) | (131)
Nondeductible interest |  |  |  |  |  |  |  |  | 44 | 52 | 41
Nondeductible merger and acquisition expenses |  |  |  |  |  |  |  |  | 32 | 38 | 0
Other items |  |  |  |  |  |  |  |  | 33 | 27 | 87
Provision for income taxes | $ 1,561 | $ 1,759 | $ 1,054 | $ 889 | $ 1,003 | $ 1,066 | $ 930 | $ 821 | $ 5,263 | $ 3,820 | $ 3,403
Statutory tax rates |  |  |  |  |  |  |  |  | 21.00% | 21.00% | 21.00%
Effective tax rates |  |  |  |  |  |  |  |  | 17.30% | 16.40% | 15.90%

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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the increase in cash surrender value of life insurance. + References No definition available. + Details
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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible expenses under enacted tax laws, or differences in the methodologies used to determine expense amounts for financial statements prepared in accordance with generally accepted accounting principles, related to interest expense. + References No definition available. + Details
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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible expenses under enacted tax laws, or differences in the methodologies used to determine expense amounts for financial statements prepared in accordance with generally accepted accounting principles, related to merger and acquisition expense. + References No definition available. + Details
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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to low income housing credits. + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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