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FAIR VALUE DISCLOSURES (Schedule of the Carrying Amount, Fair Value, and Placement in the Fair Value Hierarchy of Financial Instruments) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Sep. 30, 2021
--- | --- | ---
Financial instruments - assets |  |
Investment securities held-to-maturity | $ 66,467 | $ 57,660
Fair Value, Inputs, Level 1 [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity |  |
Loans |  |
Financial instruments - liabilities |  |
Certificates of deposit |  |
Borrowings |  |
Fair Value, Inputs, Level 2 [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity | 65,671 | 57,282
Loans |  |
Financial instruments - liabilities |  |
Certificates of deposit | 97,937 | 118,144
Borrowings | 21,520 | 23,753
Fair Value, Inputs, Level 3 [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity |  |
Loans | 579,562 | 594,674
Financial instruments - liabilities |  |
Certificates of deposit |  |
Borrowings |  |
Carrying Value [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity | 66,467 | 57,660
Loans | 579,562 | 585,301
Financial instruments - liabilities |  |
Certificates of deposit | 97,002 | 116,892
Borrowings | 21,356 | 23,356
Fair Value [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity | 65,671 | 57,282
Loans | 574,266 | 594,674
Financial instruments - liabilities |  |
Certificates of deposit | 97,937 | 118,144
Borrowings | $ 21,520 | $ 23,753

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