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FAIR VALUE MEASUREMENTS - Schedule of quantitative information about Level 3 fair value measurements (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value
Loans evaluated individually, net of related allowance	$ 13,203	$ 3,151
Fair Value, Nonrecurring
Fair Value
Loans evaluated individually, net of related allowance	3,422	1,000
Bank property held for sale with impairment	4,238	4,286
Fair Value, Nonrecurring | Level 3 Inputs
Fair Value
Loans evaluated individually, net of related allowance	3,422	1,000
Bank property held for sale with impairment	4,238	4,286
Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral
Fair Value
Loans evaluated individually, net of related allowance	3,422	1,000
Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral or real estate listing price
Fair Value
Bank property held for sale with impairment	$ 4,238	$ 4,286
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral | Minimum
Range (Weighted Average)
Loans evaluated individually, net of related allowance	(0.250)	(0.412)
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral | Maximum
Range (Weighted Average)
Loans evaluated individually, net of related allowance	(1.000)	(1.000)
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral | Weighted Average
Range (Weighted Average)
Loans evaluated individually, net of related allowance	(0.687)	(0.472)
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral or real estate listing price | Minimum
Range (Weighted Average)
Bank property held for sale with impairment	(0.090)	(0.062)
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral or real estate listing price | Maximum
Range (Weighted Average)
Bank property held for sale with impairment	(0.649)	(0.649)
Measurement Input, Comparability Adjustment | Fair Value, Nonrecurring | Level 3 Inputs | Appraisal of collateral or real estate listing price | Weighted Average
Range (Weighted Average)
Bank property held for sale with impairment	(0.391)	(0.384)

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The fair value of bank property held for sale.

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- Definition

Value of input used to measure alternative investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A

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