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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 loan | Jun. 30, 2024 USD ($) loan | Jun. 30, 2023 loan | Dec. 31, 2023 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Accrued interest |  |  | $ 7,900 |  | $ 7,800
Loans, net of deferred loan fees |  |  | 2,011,472 |  | 1,972,664
Loans subsequently defaulted | loan |  | 0 |  | 0 |
Loans, net |  |  | 1,990,441 |  | 1,950,147
Individually analyzed |  |  | $ 6,049 |  | 8,035
Number of days past due after which a retail loan is rated |  |  | 90 days |  |
Commercial, Industrial and Agricultural Loans |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Loans, net of deferred loan fees |  |  | $ 200 |  | 300
Commercial and industrial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Loans, net of deferred loan fees |  |  | $ 290,546 |  | 264,396
Commercial and industrial | Defaulted Loan |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Number of modified loans | loan |  |  | 1 |  |
Weighted-average term extension | 6 months |  |  |  |
Commercial Mortgages |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Loans, net of deferred loan fees |  |  | $ 1,154,712 |  | 1,122,925
Individually analyzed |  |  | 3,947 |  | 5,968
Commercial Mortgages | Commercial Mortgage Loan |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Loans, net |  |  | 1,900 |  |
Collateral Pledged |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Individually analyzed |  |  | $ 4,242 |  | $ 6,347

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