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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 | Mar. 31, 2022 | Sep. 30, 2021
--- | --- | ---
Financial instruments - assets |  |
Investment securities held-to-maturity | $ 84,300 | $ 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 | 79,306 | 57,282
Loans |  |
Financial instruments - liabilities |  |
Certificates of deposit | 94,156 | 118,144
Borrowings | 18,758 | 23,753
Fair Value, Inputs, Level 3 [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity |  |
Loans | 602,706 | 594,674
Financial instruments - liabilities |  |
Certificates of deposit |  |
Borrowings |  |
Carrying Value [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity |  | 57,660
Loans |  | 585,301
Financial instruments - liabilities |  |
Certificates of deposit |  | 116,892
Borrowings |  | 23,356
Fair Value [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity | 79,306 | 57,282
Loans | 602,706 | 594,674
Financial instruments - liabilities |  |
Certificates of deposit | 94,156 | 118,144
Borrowings | 18,758 | $ 23,753
Carrying Value [Member] |  |
Financial instruments - assets |  |
Investment securities held-to-maturity | 84,300 |
Loans | 609,413 |
Financial instruments - liabilities |  |
Certificates of deposit | 94,260 |
Borrowings | $ 19,150 |

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI https://asc.fasb.org/subtopic&trid=2196772 + Details
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