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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of ALL by Loan Category) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 7,800	$ 6,400
Individually evaluated for impairment	158	221
Collectively evaluated for impairment	7,642	6,179
Balance - Loans receivable	615,124	611,259
Loan balance individually evaluated for impairment	12,038	14,161
Loan balance collectively evaluated for impairment	603,086	597,098
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,088	1,035
Individually evaluated for impairment
Collectively evaluated for impairment	1,088	1,035
Balance - Loans receivable	203,688	210,360
Loan balance individually evaluated for impairment	2,483	2,601
Loan balance collectively evaluated for impairment	201,205	207,759
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	3,706	3,232
Individually evaluated for impairment		46
Collectively evaluated for impairment	3,706	3,186
Balance - Loans receivable	276,922	248,134
Loan balance individually evaluated for impairment	3,137	4,405
Loan balance collectively evaluated for impairment	273,785	243,729
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	627	672
Individually evaluated for impairment	158	175
Collectively evaluated for impairment	469	497
Balance - Loans receivable	24,664	28,242
Loan balance individually evaluated for impairment	4,580	5,141
Loan balance collectively evaluated for impairment	20,084	23,101
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	266	179
Individually evaluated for impairment
Collectively evaluated for impairment	266	179
Balance - Loans receivable	18,047	19,373
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	18,047	19,373
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,901	1,034
Individually evaluated for impairment
Collectively evaluated for impairment	1,901	1,034
Balance - Loans receivable	88,202	100,993
Loan balance individually evaluated for impairment	1,838	2,014
Loan balance collectively evaluated for impairment	86,364	98,979
Other [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses		1
Individually evaluated for impairment
Collectively evaluated for impairment		1
Balance - Loans receivable	3,601	4,157
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	3,601	4,157
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	212	247
Individually evaluated for impairment
Collectively evaluated for impairment	212	247
Balance - Loans receivable
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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