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FAIR VALUE DISCLOSURES (Narrative) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2017 USD ($) N | Sep. 30, 2016 USD ($)
Total Unpaid Contractual Principal Balance | $ 7,789 | $ 10,099
Specific loss reserves |  | 39
Impaired Loans [Member] |  |
Number of impaired loans | N | 4 |
Total Unpaid Contractual Principal Balance | $ 1,600 |
Cumulative write-down of impaired loans | 335 |
Specific loss reserves | 0 |
Commercial business [Member] |  |
Total Unpaid Contractual Principal Balance | 243 | 1,850
Specific loss reserves |  | 39
Home equity lines of credit [Member] |  |
Total Unpaid Contractual Principal Balance |  | 167
Specific loss reserves |  |
Commercial real estate [Member] |  |
Total Unpaid Contractual Principal Balance | 4,110 | 3,843
Specific loss reserves |  |
One-to four-family residential [Member] |  |
Total Unpaid Contractual Principal Balance | 3,436 | 4,239
Specific loss reserves |  |

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