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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Jan. 31, 2023 | Dec. 31, 2023 USD ($) segment | Dec. 31, 2022 USD ($)
Number of reportable segments | segment |  |  | 1 |
Contractual performance period of nonaccrual loans to be restored to accrual status |  |  | 6 months |
Credit losses related to unfunded loan commitments | $ 19,208,000 |  | $ 19,208,000 | $ 16,615,000
Interest receivable | $ 2,018,000 |  | 2,018,000 |
Interest receivable excluded from the estimate of credit losses |  |  | $ 7,099,000 |
Weighted-average remaining life of the entire portfolio | 4 years 5 months 23 days | 4 years 4 months 9 days |  |
Forecast relevant to collectability of cash flows |  |  | 2 years |
Accrued interest related to unrecognized tax benefits | $ 0 |  | $ 0 |
Fair value of trust assets under management | 1,188,082,000 |  | $ 1,188,082,000 | 1,063,615,000
Trust revenue is earned and collected monthly |  |  | 81.00% |
Commercial |  |  |  |
Credit losses related to unfunded loan commitments |  |  |  | 11,298,000
Threshold amount of financing receivables for credit losses | 200,000 |  | $ 200,000 |
Residential mortgage |  |  |  |
Credit losses related to unfunded loan commitments |  |  |  | 4,073,000
Threshold amount of financing receivables for credit losses | 400,000 |  | 400,000 |
Consumer |  |  |  |
Credit losses related to unfunded loan commitments |  |  |  | $ 244,000
Threshold amount of financing receivables for credit losses | $ 400,000 |  | $ 400,000 |

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