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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Troubled debt restructured loans (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Financing Receivable, Impaired [Line Items] |  |
Troubled debt restructured loans | $ 41 | $ 34
Non-accrual and 90+ days past due and still accruing loans to average loans | 0.31% | 0.25%
Allowance for credit losses to non-accrual and 90 days or more and still accruing loans | 385.80% | 433.90%

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