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LOANS RECEIVABLE, NET (Schedule of Type of Loan) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2020 USD ($) N
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	283
Balance | $	$ 150,691
One-to four-family residential [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	94	[1]
Balance | $	$ 24,573	[1]
Commercial real estate [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	145
Balance | $	$ 115,358
Construction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	4
Balance | $	$ 2,630
Home equity lines of credit [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	8
Balance | $	$ 1,238
Commercial business [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | N	32
Balance | $	$ 6,892
[1] Includes home equity loans.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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-Publisher FASB
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-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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