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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Narrative) (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 27, 2020 USD ($)	Jun. 30, 2021 USD ($) Loans	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Loans	Jun. 30, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment		$ 12,275,000	$ 12,058,000	$ 12,582,000	$ 10,836,000
Troubled debt restructurings pre-modification amount		$ 112,000		$ 330,000
Number of loans | Loans		1		2
Loan received				$ 44,700,000
Paycheck Protection Program Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate of loan		1.00%		1.00%
Number of loans | Loans				212
Loan received				$ 35,300,000
Loan origination fees		$ 1,500,000		$ 1,500,000
Percentage of revenue reduction	25.00%
Amount of debt forgiveness	$ 150,000
Paycheck Protection Program Loan [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Expected life of loans				2 years
Paycheck Protection Program Loan [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Expected life of loans				5 years
Paycheck Protection Program Loan [Member] | SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Guarantee percentage				100.00%
Number of loans | Loans				276
Loan received				$ 56,000,000.0
Loan origination fees		$ 2,000,000.0		2,000,000.0
Amount of debt forgiveness				$ 46,100,000

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