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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Classes of loan portfolios (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications | $ 0 | $ 2,810,000
Term Extension |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 2,810,000
Other residential (multi-family) |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 2,709,000
Other residential (multi-family) | Term Extension |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 2,709,000
Commercial real estate |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 70,000
Commercial real estate | Term Extension |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 70,000
Consumer |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | 31,000
Consumer | Term Extension |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |
Loan modifications |  | $ 31,000

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