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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) Loans	Mar. 31, 2021 USD ($)	Sep. 30, 2021 USD ($) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 9,652,000	$ 12,855,000	$ 10,124,000	$ 13,290,000
Troubled debt restructurings pre-modification amount			$ 218,000	$ 218,000
Guarantee percentage			1.00%
Interest rate of loan	1.00%		1.00%
Number of loans | Loans			1
Paycheck Protection Program Loan [Member] | SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | Loans			19		111
Loan received			$ 5,200,000		$ 25,100,000

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