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UNREALIZED LOSSES ON INVESTMENT SECURITIES AVAILABLE-FOR-SALE (Tables) | 9 Months Ended
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Jun. 30, 2025
Unrealized Losses on Investment Securities Available-for-Sale [Abstract] |
Schedule of Unrealized Losses of Available-for-Sale Securities | Details of available-for-sale securities with unrealized losses at June 30, 2025 and September 30, 2024 are as following tables:
|  |  |  |  | Less Than 12 Months |  |  | 12 Months Or Greater |  |  | Total |
|  | Number of |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Securities |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  |  |  |  | (Dollars in thousands) |
June 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  |  | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 82 |  |  | $ | (9 | ) |  | $ | 82 |  |  | $ | (9 | )
Obligations of U.S. government-sponsored enterprises |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  |  | 9 |  |  |  | 1,857 |  |  |  | — |  |  |  | 7,018 |  |  |  | (1,189 | ) |  |  | 8,875 |  |  |  | (1,189 | )
Total |  |  | 10 |  |  | $ | 1,857 |  |  | $ | — |  |  | $ | 7,100 |  |  | $ | (1,198 | ) |  | $ | 8,957 |  |  | $ | (1,198 | )
|  |  |  |  | Less Than 12 Months |  |  | 12 Months Or Greater |  |  | Total |
|  | Number of |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Securities |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  |  |  |  | (Dollars in thousands) |
September 30, 2024 |  |  |  |  |  |
Securities available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  |  | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 88 |  |  | $ | (6 | ) |  | $ | 88 |  |  | $ | (6 | )
Obligations of U.S. government-sponsored enterprises |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  |  | 8 |  |  |  | — |  |  |  | — |  |  |  | 7,550 |  |  |  | (1,202 | ) |  |  | 7,550 |  |  |  | (1,202 | )
Total |  |  | 9 |  |  | $ | — |  |  | $ | — |  |  | $ | 7,638 |  |  | $ | (1,208 | ) |  | $ | 7,638 |  |  | $ | (1,208 | )

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