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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of ALL by Loan Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 8,228	$ 8,075
Individually evaluated for impairment	224	224
Collectively evaluated for impairment	8,004	7,851
Balance - Loans receivable	583,354	594,617
Loan balance individually evaluated for impairment	10,505	11,068
Loan balance collectively evaluated for impairment	572,849	583,549
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,093	1,136
Individually evaluated for impairment
Collectively evaluated for impairment	1,093	1,136
Balance - Loans receivable	200,807	203,019
Loan balance individually evaluated for impairment	2,217	2,711
Loan balance collectively evaluated for impairment	198,590	200,308
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	3,706	3,744
Individually evaluated for impairment
Collectively evaluated for impairment	3,706	3,744
Balance - Loans receivable	278,989	280,848
Loan balance individually evaluated for impairment	2,202	2,270
Loan balance collectively evaluated for impairment	276,787	278,578
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	724	594
Individually evaluated for impairment	224	224
Collectively evaluated for impairment	500	370
Balance - Loans receivable	24,282	20,350
Loan balance individually evaluated for impairment	4,580	4,580
Loan balance collectively evaluated for impairment	19,702	15,770
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	232	232
Individually evaluated for impairment
Collectively evaluated for impairment	232	232
Balance - Loans receivable	17,667	17,930
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	17,667	17,930
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	2,129	2,046
Individually evaluated for impairment
Collectively evaluated for impairment	2,129	2,046
Balance - Loans receivable	58,320	68,719
Loan balance individually evaluated for impairment	1,506	1,507
Loan balance collectively evaluated for impairment	56,814	67,212
Other [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1	15
Individually evaluated for impairment
Collectively evaluated for impairment	1	15
Balance - Loans receivable	3,289	3,751
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	3,289	3,751
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	343	308
Individually evaluated for impairment
Collectively evaluated for impairment	343	308
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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