LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of ALL by Loan Category) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2018
Allowance for Loan Losses:
Balance - Allowance for loans losses	$ 4,600	$ 4,200
Individually evaluated for impairment
Collectively evaluated for impairment	4,600	4,200
Balance - Loans receivable	519,876	512,498
Loan balance individually evaluated for impairment	8,782	5,861
Loan balance collectively evaluated for impairment	511,094	506,637
One-to four-family residential [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	710	687
Individually evaluated for impairment
Collectively evaluated for impairment	710	687
Balance - Loans receivable	189,066	185,287
Loan balance individually evaluated for impairment	1,349	1,132
Loan balance collectively evaluated for impairment	187,717	184,155
Commercial real estate [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,685	1,540
Individually evaluated for impairment
Collectively evaluated for impairment	1,685	1,540
Balance - Loans receivable	223,432	219,347
Loan balance individually evaluated for impairment	3,911	3,961
Loan balance collectively evaluated for impairment	219,521	215,386
Construction [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	816	493
Individually evaluated for impairment
Collectively evaluated for impairment	816	493
Balance - Loans receivable	33,493	30,412
Loan balance individually evaluated for impairment	2,900
Loan balance collectively evaluated for impairment	30,593	30,412
Home equity lines of credit [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	138	109
Individually evaluated for impairment
Collectively evaluated for impairment	138	109
Balance - Loans receivable	19,482	17,982
Loan balance individually evaluated for impairment	39	58
Loan balance collectively evaluated for impairment	19,443	17,924
Commercial business [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	1,104	1,151
Individually evaluated for impairment
Collectively evaluated for impairment	1,104	1,151
Balance - Loans receivable	49,225	53,320
Loan balance individually evaluated for impairment	583	710
Loan balance collectively evaluated for impairment	48,642	52,610
Other [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	3	25
Individually evaluated for impairment
Collectively evaluated for impairment	3	25
Balance - Loans receivable	5,178	6,150
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment	5,178	6,150
Unallocated [Member]
Allowance for Loan Losses:
Balance - Allowance for loans losses	144	195
Individually evaluated for impairment
Collectively evaluated for impairment	144	195
Balance - Loans receivable
Loan balance individually evaluated for impairment
Loan balance collectively evaluated for impairment

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were 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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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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