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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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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.

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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.

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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.

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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.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes.

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