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LOANS RECEIVABLE, NET (Schedule of Troubled Debt Restructuring) (Details) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 USD ($) N | Sep. 30, 2016 USD ($) N
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N | 1 |
Investment Before TDR Modification | $ 182 |
Investment After TDR Modification | $ 182 |
One-to four-family residential [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N | 1 |
Investment Before TDR Modification | $ 182 |
Investment After TDR Modification | $ 182 |
Commercial real estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N |  |
Investment Before TDR Modification |  |
Investment After TDR Modification |  |
Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N |  |
Investment Before TDR Modification |  |
Investment After TDR Modification |  |
Home equity lines of credit [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N |  |
Investment Before TDR Modification |  |
Investment After TDR Modification |  |
Commercial business [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N |  |
Investment Before TDR Modification |  |
Investment After TDR Modification |  |
Other [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | N |  |
Investment Before TDR Modification |  |
Investment After TDR Modification |  |

X
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