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LOANS RECEIVABLE, NET (Schedule of ALL by Loan Category) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 4,200	$ 3,475
Individually evaluated for impairment
Collectively evaluated for impairment	4,200	3,475
Balance - Loans receivable	512,498	473,991
Loan balance individually evaluated for impairment	5,861	7,455
Loan balance collectively evaluated for impairment	506,637	466,536
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	687	587
Individually evaluated for impairment
Collectively evaluated for impairment	687	587
Balance - Loans receivable	185,287	178,336
Loan balance individually evaluated for impairment	1,132	3,124
Loan balance collectively evaluated for impairment	184,155	175,212
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,540	1,277
Individually evaluated for impairment
Collectively evaluated for impairment	1,540	1,277
Balance - Loans receivable	219,347	207,118
Loan balance individually evaluated for impairment	3,961	4,088
Loan balance collectively evaluated for impairment	215,386	203,030
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	493	490
Individually evaluated for impairment
Collectively evaluated for impairment	493	490
Balance - Loans receivable	30,412	22,622
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	30,412	22,622
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	109	57
Individually evaluated for impairment
Collectively evaluated for impairment	109	57
Balance - Loans receivable	17,982	18,536
Loan balance individually evaluated for impairment	58
Loan balance collectively evaluated for impairment	17,924	18,536
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,151	956
Individually evaluated for impairment
Collectively evaluated for impairment	1,151	956
Balance - Loans receivable	53,320	41,113
Loan balance individually evaluated for impairment	710	243
Loan balance collectively evaluated for impairment	52,610	40,870
Other [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	25	6
Individually evaluated for impairment
Collectively evaluated for impairment	25	6
Balance - Loans receivable	6,150	6,266
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	6,150	6,266
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	195	102
Individually evaluated for impairment
Collectively evaluated for impairment	195	102
Balance - Loans receivable
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment

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