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%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Section 50
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