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FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK - Schedule of Information Regarding Derivatives (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2026 | Sep. 30, 2025
Customer Interest Rate Swaps [Member] |  |
Classified in Other Assets: |  |
Notional Amount | $ 45,215 | $ 43,122
Average Maturity (Years) | 3 years 2 months 12 days | 3 years 7 months 6 days
Weighted Average Fixed Rate | 5.77% | 5.75%
Weighted Average Variable Rate | 1 Mo. SOFR + 2.66 | 1 Mo. SOFR + 2.66
Fair Value | $ 594 | $ 911
Classified in Other Assets [Member] |  |
Classified in Other Assets: |  |
Notional Amount | $ 45,215 | $ 43,122
Average Maturity (Years) | 3 years 2 months 12 days | 3 years 7 months 6 days
Weighted Average Fixed Rate | 5.77% | 5.75%
Fair Value | $ 594 | $ 911
3rd Party Interest Rate swaps [Member] |  |
Classified in Other Assets: |  |
Notional Amount | $ 45,215 | $ 43,122
Average Maturity (Years) | 3 years 2 months 12 days | 3 years 7 months 6 days
Weighted Average Fixed Rate | 5.77% | 5.75%
Weighted Average Variable Rate | 1 Mo. SOFR + 2.66 | 1 Mo. SOFR + 2.66
Fair Value | $ 594 | $ 911
Classified in Other Liabilities [Member] |  |
Classified in Other Assets: |  |
Notional Amount | $ 45,215 | $ 43,122
Average Maturity (Years) | 3 years 2 months 12 days | 3 years 7 months 6 days
Weighted Average Fixed Rate | 5.77% | 5.75%
Fair Value | $ 594 | $ 911

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- Definition Average fixed interest rate related to the group of interest rate derivatives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-5 + Details
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- Definition Average period remaining until maturity of derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-5 + Details
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