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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, 2019	Sep. 30, 2018
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 4,693	$ 4,200
Individually evaluated for impairment
Collectively evaluated for impairment	4,693	4,200
Balance - Loans receivable	530,824	512,498
Loan balance individually evaluated for impairment	9,076	5,861
Loan balance collectively evaluated for impairment	521,748	506,637
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	713	687
Individually evaluated for impairment
Collectively evaluated for impairment	713	687
Balance - Loans receivable	191,248	185,287
Loan balance individually evaluated for impairment	1,339	1,132
Loan balance collectively evaluated for impairment	189,909	184,155
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,903	1,540
Individually evaluated for impairment
Collectively evaluated for impairment	1,903	1,540
Balance - Loans receivable	234,437	219,347
Loan balance individually evaluated for impairment	4,355	3,961
Loan balance collectively evaluated for impairment	230,082	215,386
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	764	493
Individually evaluated for impairment
Collectively evaluated for impairment	764	493
Balance - Loans receivable	30,536	30,412
Loan balance individually evaluated for impairment	2,900
Loan balance collectively evaluated for impairment	27,636	30,412
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	139	109
Individually evaluated for impairment
Collectively evaluated for impairment	139	109
Balance - Loans receivable	18,346	17,982
Loan balance individually evaluated for impairment		58
Loan balance collectively evaluated for impairment	18,346	17,924
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,030	1,151
Individually evaluated for impairment
Collectively evaluated for impairment	1,030	1,151
Balance - Loans receivable	51,628	53,320
Loan balance individually evaluated for impairment	482	710
Loan balance collectively evaluated for impairment	51,146	52,610
Other [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	4	25
Individually evaluated for impairment
Collectively evaluated for impairment	4	25
Balance - Loans receivable	4,629	6,150
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	4,629	6,150
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	140	195
Individually evaluated for impairment
Collectively evaluated for impairment	140	195
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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