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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Sep. 30, 2024
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Schedule of Loans Receivable [Line Items] |  |
Total loans receivable | $ 845,410 | $ 781,216
Net deferred loan costs | (1,419) | (1,054)
Total loans receivable, net | 843,991 | 780,162
One-to-four family residential [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
One-to-four family residential | 245,235 | 246,201
Commercial real estate [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
Commercial real estate | 523,990 | 461,319
Construction and land [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
Construction and land | 25,930 | 22,722
Home equity loans and lines of credit [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
Home equity loans and lines of credit | 29,415 | 24,728
Commercial business [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
Commercial business | 19,135 | 24,011
Other [Member] |  |
Schedule of Loans Receivable [Line Items] |  |
Other | $ 1,705 | $ 2,235

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