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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Impaired Loans by Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
Financing Receivable, Impaired [Line Items]
Recorded Investment Impaired Loans with Specific Allowance	$ 1,003
Related Allowance Impaired Loans with Specific Allowance	320
Recorded Investment Impaired Loans with No Specific Allowance	7,393	10,354
Total Impaired Loans Recorded Investment	8,396	10,354
Total Impaired Loans Unpaid Principal Balance	8,396	10,354
One-to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment Impaired Loans with Specific Allowance
Related Allowance Impaired Loans with Specific Allowance
Recorded Investment Impaired Loans with No Specific Allowance	1,396	1,405
Total Impaired Loans Recorded Investment	1,396	1,405
Total Impaired Loans Unpaid Principal Balance	1,396	1,405
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment Impaired Loans with Specific Allowance
Related Allowance Impaired Loans with Specific Allowance
Recorded Investment Impaired Loans with No Specific Allowance	2,623	4,593
Total Impaired Loans Recorded Investment	2,623	4,593
Total Impaired Loans Unpaid Principal Balance	2,623	4,593
Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment Impaired Loans with Specific Allowance
Related Allowance Impaired Loans with Specific Allowance
Recorded Investment Impaired Loans with No Specific Allowance	2,900	2,900
Total Impaired Loans Recorded Investment	2,900	2,900
Total Impaired Loans Unpaid Principal Balance	2,900	2,900
Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment Impaired Loans with Specific Allowance	1,003
Related Allowance Impaired Loans with Specific Allowance	320
Recorded Investment Impaired Loans with No Specific Allowance	474	1,456
Total Impaired Loans Recorded Investment	1,477	1,456
Total Impaired Loans Unpaid Principal Balance	$ 1,477	$ 1,456

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524

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-Section 50
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