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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, 2018	Sep. 30, 2018
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 4,402	$ 4,200
Individually evaluated for impairment
Collectively evaluated for impairment	4,402	4,200
Balance - Loans receivable	514,438	512,498
Loan balance individually evaluated for impairment	8,731	5,861
Loan balance collectively evaluated for impairment	505,707	506,637
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	698	687
Individually evaluated for impairment
Collectively evaluated for impairment	698	687
Balance - Loans receivable	186,328	185,287
Loan balance individually evaluated for impairment	1,130	1,132
Loan balance collectively evaluated for impairment	185,198	184,155
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,590	1,540
Individually evaluated for impairment
Collectively evaluated for impairment	1,590	1,540
Balance - Loans receivable	223,146	219,347
Loan balance individually evaluated for impairment	3,935	3,961
Loan balance collectively evaluated for impairment	219,211	215,386
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	674	493
Individually evaluated for impairment
Collectively evaluated for impairment	674	493
Balance - Loans receivable	31,287	30,412
Loan balance individually evaluated for impairment	2,900
Loan balance collectively evaluated for impairment	28,387	30,412
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	121	109
Individually evaluated for impairment
Collectively evaluated for impairment	121	109
Balance - Loans receivable	18,518	17,982
Loan balance individually evaluated for impairment	58	58
Loan balance collectively evaluated for impairment	18,460	17,924
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,182	1,151
Individually evaluated for impairment
Collectively evaluated for impairment	1,182	1,151
Balance - Loans receivable	49,842	53,320
Loan balance individually evaluated for impairment	708	710
Loan balance collectively evaluated for impairment	49,134	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	5,317	6,150
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	5,317	6,150
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	133	195
Individually evaluated for impairment
Collectively evaluated for impairment	133	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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