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LOANS AND LEASES - Additional Information (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) Loan | Dec. 31, 2023 USD ($)
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loan receivable, validate risk ratings performed for large sample or new lending to existing relationships | $ 1,000,000 |
Loan receivable, validate risk ratings performed for criticized and classified rated borrowers with relationship exposure, value | 500,000 |
Loan receivable, validate risk ratings performed for new federal reserve board regulation "O" loan commitments, value | 1,000,000 |
Loan receivable validate risk ratings performed for leveraged loans, value | 1,000,000 |
Loan receivable validate risk ratings performed for no borrower with commitments, value | 500,000 |
Substandard [Member] |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Financing receivable individually evaluated loan | 69,400,000 | $ 60,600,000
Substandard [Member] | Multifamily Property [Member] |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Financing receivable increase in individually evaluated substandard loans | $ 8,000,000 |
Number of Loans | Loan | 2 |
Minimum [Member] |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loan receivable, validate risk ratings performed for large sample of borrowers with relationship, value | $ 1,000,000 |
Maximum [Member] |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loan receivable, validate risk ratings performed for small sample of borrowers with relationship, value | $ 1,000,000 |

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- Definition Loan receivable, validate risk ratings performed for criticized and classified rated borrowers with relationship exposure, value. + References No definition available. + Details
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- Definition Loan receivable, validate risk ratings performed for large sample of borrowers with relationship, value. + References No definition available. + Details
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- Definition Loan receivable, validate risk ratings performed for large sample or new lending to existing relationships, value. + References No definition available. + Details
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- Definition Loan receivable validate risk ratings performed for leveraged loans, value. + References No definition available. + Details
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- Definition Loan receivable validate risk ratings performed for new federal reserve board regulation loan commitments value. + References No definition available. + Details
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- Definition Loan receivable validate risk ratings performed for no borrower with commitments, value. + References No definition available. + Details
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- Definition Loan receivable, validate risk ratings performed for Small sample of borrowers with relationship, value. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
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