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LOANS AND LEASES - Additional Information (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) Loan | Jun. 30, 2023 USD ($) Loan | Jun. 30, 2022 USD ($) Loan | Dec. 31, 2022 USD ($)
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 |  |
Troubled debt restructurings specific reserves | $ 2,500,000 |  | $ 2,500,000 |
Troubled debt restructurings unfunded commitments |  | 0 |  |
Number of Loans | Loan | 0 |  | 1 |
Troubled debt restructuring, payments default, number of loans | Loan |  |  | 2 |
Substandard [Member] |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |
Financing receivable individually evaluated loan |  | 33,700,000 |  | $ 14,700,000
Substandard [Member] | Multifamily Property [Member] |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |
Financing receivable increase in individually evaluated substandard loans |  | $ 18,900,000 |  |
Number of Loans | Loan |  | 3 |  |
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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