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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

X

- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

No definition available.

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X

- 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

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

+ References

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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

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