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LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES (Troubled Debt Restructuring) (Details) - USD ($) | Sep. 30, 2024 | Sep. 30, 2023
--- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring | $ 5,322,000 | $ 9,123,000
Financing Receivable, Modified, Commitment to Lend |  | 195,000
Payment Deferral |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring | 5,322,000 | 2,761,000
Extended Maturity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 6,362,000
One- to four- family construction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 6,362,000
One- to four- family construction | Payment Deferral |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 0
One- to four- family construction | Extended Maturity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 6,362,000
Commercial Business |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring | 5,322,000 | 121,000
Commercial Business | Payment Deferral |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring | $ 5,322,000 | 121,000
Commercial Business | Extended Maturity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 0
Agricultural Business |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 1,580,000
Agricultural Business | Payment Deferral |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 1,580,000
Agricultural Business | Extended Maturity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 0
One- to Four-Family Residential |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 1,060,000
One- to Four-Family Residential | Payment Deferral |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | 1,060,000
One- to Four-Family Residential | Extended Maturity |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Financing Receivable, Troubled Debt Restructuring |  | $ 0

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