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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Average Recorded Investment in Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans	$ 10,676	$ 16,477	$ 10,661	$ 16,724
One-to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans	3,553	6,937	3,374	7,532
Commercial real estate
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans	5,211	5,215	5,289	5,159
Construction
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans		1,942		2,054
Home equity lines of credit
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans	139	484	231	599
Commercial business
Financing Receivable, Impaired [Line Items]
Average investment in impaired loans	$ 1,773	$ 1,899	$ 1,767	$ 1,380

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+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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