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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	Jun. 30, 2020	Sep. 30, 2019
Financial instruments - assets
Investment securities held to maturity	$ 28,070	$ 29,481
Fair Value, Inputs, Level 1 [Member]
Financial instruments - assets
Investment securities held to maturity
Loans
Financial instruments - liabilities
Certificates of deposit including retirement certificates
Borrowings
Fair Value, Inputs, Level 2 [Member]
Financial instruments - assets
Investment securities held to maturity	28,538	29,344
Loans
Financial instruments - liabilities
Certificates of deposit including retirement certificates	131,894	117,730
Borrowings	67,884	36,583
Fair Value, Inputs, Level 3 [Member]
Financial instruments - assets
Investment securities held to maturity
Loans	623,094	527,088
Financial instruments - liabilities
Certificates of deposit including retirement certificates
Borrowings
Carrying Value [Member]
Financial instruments - assets
Investment securities held to maturity	28,070	29,481
Loans	604,550	518,217
Financial instruments - liabilities
Certificates of deposit including retirement certificates	129,463	116,776
Borrowings	66,941	36,189
Fair Value [Member]
Financial instruments - assets
Investment securities held to maturity	28,538	29,344
Loans	623,094	527,088
Financial instruments - liabilities
Certificates of deposit including retirement certificates	131,894	117,730
Borrowings	$ 67,884	$ 36,583

X

- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

No definition available.

+ Details

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

+ Details

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X

- References

No definition available.

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- References

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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

No definition available.

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X

- 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 http://asc.fasb.org/subtopic&trid=2196772

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