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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2021 | Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |
Loans receivable, allowance for credit losses |  | $ 64,987,000 |  | $ 63,480,000
TDR loans evaluated on individual | $ 100,000 |  |  |
Interest income |  | 0 | $ 0 |
Non-accrual loans for no related allowance amortized cost |  | 1,700,000 |  |
Minimum loan balance required for collateral-dependent loans |  | 100,000 |  |
Provision expense on its portfolio of outstanding loans |  | 1,500,000 |  |
Provision for loan losses |  | $ 1,500,000 | 0 |
Loan modifications |  |  |  | 2,949,000
Troubled debt restructurings internal grading system substandard |  |  |  | $ 1,700,000
Troubled debt restructurings returned to accrual status |  |  | 221,000 |
Maximum percentage of concessions granted of their respective classes of loan portfolios |  | 2.50% |  |
Allowance for unfunded commitment |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |
Provision for loan losses |  | $ (826,000) | $ (193,000) |

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- Definition Amount of minimum loan balance which are identified primarily by a classified risk rating required for collateral dependent loans including, but not limited to any loan in process of foreclosure or repossession. + References No definition available. + Details
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