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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Loans Receivable, Net) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Sep. 30, 2017
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | $ 481,573 | $ 473,991
Net deferred loan costs | 165 | 177
Allowance for loan losses | (3,537) | (3,475)
Total loans receivable, net | 478,201 | 470,693
One-to four-family residential [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 175,461 | 178,336
Allowance for loan losses | (563) | (587)
Commercial real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 210,081 | 207,118
Allowance for loan losses | (1,299) | (1,277)
Construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 22,811 | 22,622
Allowance for loan losses | (384) | (490)
Home equity lines of credit [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 20,586 | 18,536
Allowance for loan losses | (131) | (57)
Commercial business [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 46,595 | 41,113
Allowance for loan losses | (1,052) | (956)
Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | 6,039 | 6,266
Allowance for loan losses | $ (4) | $ (6)

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 + Details
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