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FAIR VALUES OF FINANCIAL INSTRUMENTS- Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Transfers between levels of fair value hierarchy | $ 0 | $ 0
Minimum | Impaired Loans | Level 3 | Valuation, Market Approach |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Range of estimated selling cost (percentage) | 3.00% |
Maximum | Impaired Loans | Level 3 | Valuation, Market Approach |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Range of estimated selling cost (percentage) | 37.00% |

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