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INCOME TAXES - Additional Information (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Operating Loss Carryforwards [Line Items] |  |  |
Statutory percentage rate of provision | 21.00% |  |
Deferred income tax asset (liability) allocated to unrealized net gain (loss) on securities available-for-sale | $ 41,100,000 | $ 50,000,000.0 |
Deferred income tax asset allocated to pension plan and SERP | 243,000 | 255,000 |
Unrecognized tax benefits | 0 | 0 |
Interest and penalties related to unrecognized tax benefits | 0 | $ 0 | $ 0
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | $ 20,000,000 |  |

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- Definition Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions and Postretirement Benefits + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized gain losses on available-for-sale securities. + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
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