FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK (Schedule of Information Regarding Derivatives) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Jun. 30, 2022	Sep. 30, 2021
Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	5 years 6 months
Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	5 years 6 months
Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 26,661
Weighted Average Fixed Rate	4.88%
Fair Value	$ 1,622
Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 26,661
Weighted Average Fixed Rate	4.88%
Fair Value	$ 1,622
Customer Interest Rate Swaps [Member] \| Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	6 years 1 month 6 days	6 years 10 months 24 days
Weighted Average Variable Rate	1 Mo. LIBOR + 2.50	1 Mo. LIBOR + 2.50
Customer Interest Rate Swaps [Member] \| Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 19,676	$ 20,111
Weighted Average Fixed Rate	3.63%	3.61%
Fair Value	$ 1,552	$ 183
Other Interest Rate Swaps [Member] \| Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	4 years 9 months 18 days
Weighted Average Variable Rate	1 Mo. BSBY + 3.00
Other Interest Rate Swaps [Member] \| Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	4 years 9 months 18 days
Weighted Average Variable Rate	1 Mo. BSBY + 3.00
Other Interest Rate Swaps [Member] \| Classified in Other Assets [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 6,985
Weighted Average Fixed Rate	6.13%
Fair Value	$ 70
Other Interest Rate Swaps [Member] \| Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 6,985
Weighted Average Fixed Rate	6.13%
Fair Value	$ 70
3rd Party Interest Rate Swaps [Member] \| Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Average Maturiy (Years)	6 years 1 month 6 days	6 years 10 months 24 days
Weighted Average Variable Rate	1 Mo. LIBOR + 2.50	1 Mo. LIBOR + 2.50
3rd Party Interest Rate Swaps [Member] \| Classified in Other Liabilities [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Notional Amount	$ 19,676	$ 20,111
Weighted Average Fixed Rate	3.63%	3.61%
Fair Value	$ 1,552	$ 183

Weighted Average Variable Rate.

No definition available.

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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ 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 https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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