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INVESTMENT SECURITIES (Tables) | 9 Months Ended
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Jun. 30, 2023
Investments Securities [Abstract] |
Schedule of the Amortized Cost and Fair Values of Securities Available for Sale | The following table summarizes the amortized cost and fair values of securities classified as available-for-sale and held-to-maturity
|  |  |  |  | Gross |  |  | Gross |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
June 30, 2023 |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
|  | (In thousands) |
Securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  | $ | 109 |  |  | $ | — |  |  | $ | (9 | ) |  | $ | 100 |
Obligations of U.S. government-sponsored enterprises: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities-residential |  |  | 10,296 |  |  |  | — |  |  |  | (1,662 | ) |  |  | 8,634 |
Total securities available-for-sale |  | $ | 10,405 |  |  | $ | — |  |  | $ | (1,671 | ) |  | $ | 8,734 |
Securities held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  | $ | 5,197 |  |  | $ | — |  |  | $ | (731 | ) |  | $ | 4,466 |
Mortgage-backed securities - commercial |  |  | 584 |  |  |  | — |  |  |  | (2 | ) |  |  | 582 |
Obligations of U.S. government-sponsored enterprises: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed-securities - residential |  |  | 46,422 |  |  |  | — |  |  |  | (7,093 | ) |  |  | 39,329 |
Debt securities |  |  | 24,835 |  |  |  | — |  |  |  | (1,954 | ) |  |  | 22,881 |
Private label mortgage-backed securities - residential |  |  | 211 |  |  |  | — |  |  |  | (11 | ) |  |  | 200 |
Obligations of state and political subdivisions |  |  | 3,471 |  |  |  | 3 |  |  |  | (398 | ) |  |  | 3,076 |
Corporate securities |  |  | 3,000 |  |  |  | — |  |  |  | (197 | ) |  |  | 2,803 |
Total securities held-to-maturity |  | $ | 83,720 |  |  | $ | 3 |  |  | $ | (10,386 | ) |  | $ | 73,337 |
Total investment securities |  | $ | 94,125 |  |  | $ | 3 |  |  | $ | (12,057 | ) |  | $ | 82,071 |
|  |  |  |  | Gross |  |  | Gross |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
September 30, 2022 |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
|  | (In thousands) |
Securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage backed securities - residential |  | $ | 118 |  |  | $ | — |  |  | $ | (11 | ) |  | $ | 107 |
Obligations of U.S. government-sponsored enterprises: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities-residential |  |  | 11,029 |  |  |  | — |  |  |  | (1,907 | ) |  |  | 9,122 |
Total securities available for sale |  | $ | 11,147 |  |  | $ | — |  |  | $ | (1,918 | ) |  | $ | 9,229 |
Securities held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of U.S. government agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities - residential |  | $ | 5,525 |  |  | $ | — |  |  | $ | (717 | ) |  | $ | 4,808 |
Mortgage-backed securities - commercial |  |  | 631 |  |  |  | — |  |  |  | — |  |  |  | 631 |
Obligations of U.S. government-sponsored enterprises: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage backed securities - residential |  |  | 48,961 |  |  |  | 12 |  |  |  | (7,548 | ) |  |  | 41,425 |
Debt securities |  |  | 24,821 |  |  |  | — |  |  |  | (2,395 | ) |  |  | 22,426 |
Private label mortgage-backed securities - residential |  |  | 224 |  |  |  | — |  |  |  | (10 | ) |  |  | 214 |
Obligations of state and political subdivisions |  |  | 3,484 |  |  |  | — |  |  |  | (638 | ) |  |  | 2,846 |
Corporate securities |  |  | 8,000 |  |  |  | — |  |  |  | (436 | ) |  |  | 7,564 |
Total securities held to maturity |  | $ | 91,646 |  |  | $ | 12 |  |  | $ | (11,744 | ) |  | $ | 79,914 |
Total investment securities |  | $ | 102,793 |  |  | $ | 12 |  |  | $ | (13,662 | ) |  | $ | 89,143 |
Schedule of Maturities Debt Securities and Mortgage Backed Securities Held to Maturity | The contractual maturities of debt securities, municipal bonds and certain information regarding mortgage-backed securities available-for-sale and held-to-maturity at June 30, 2023 are summarized in the following table:
|  | June 30, 2023 |
|  | Amortized |  |  | Fair |
Securities available-for-sale |  | Cost |  |  | Value |
|  | (In thousands) |
Due within 1 year |  | $ | — |  |  | $ | — |
Due after 1 but within 5 years |  |  | — |  |  |  | — |
Due after 5 but within 10 years |  |  | — |  |  |  | — |
Due after 10 years |  |  | — |  |  |  | — |
Total debt securities |  |  | — |  |  |  | — |
Mortgage-backed securities: |  |  |  |  |  |  |  |
Residential |  |  | 10,405 |  |  |  | 8,734 |
Commercial |  |  | — |  |  |  | — |
Total |  | $ | 10,405 |  |  | $ | 8,734 |
|  | June 30, 2023 |
|  | Amortized |  |  | Fair |
Securities held-to-maturity |  | Cost |  |  | Value |
|  | (In thousands) |
Due within 1 year |  | $ | 7,836 |  |  | $ | 7,652 |
Due after 1 but within 5 years |  |  | 18,527 |  |  |  | 16,926 |
Due after 5 but within 10 years |  |  | 4,943 |  |  |  | 4,182 |
Due after 10 years |  |  | — |  |  |  | — |
Total debt securities |  |  | 31,306 |  |  |  | 28,760 |
Mortgage-backed securities: |  |  |  |  |  |  |  |
Residential |  |  | 51,830 |  |  |  | 43,995 |
Commercial |  |  | 584 |  |  |  | 582 |
Total |  | $ | 83,720 |  |  | $ | 73,337 |

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