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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Impaired Loans by Class) (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Sep. 30, 2014
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance | $ 1,600 | $ 2,186
Related Allowance | 147 | 385
Recorded Investment With No Specific Allowance | 11,498 | 15,032
Total Recorded Investment | 13,098 | 17,218
Total Unpaid Contractual Principal Balance | $ 15,420 | 22,315
One-to four-family residential [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance |  | 1,733
Related Allowance |  | 42
Recorded Investment With No Specific Allowance | $ 3,208 | 6,990
Total Recorded Investment | 3,208 | 8,723
Total Unpaid Contractual Principal Balance | $ 3,286 | $ 10,830
Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance |  |
Related Allowance |  |
Recorded Investment With No Specific Allowance | $ 5,608 | $ 5,046
Total Recorded Investment | 5,608 | 5,046
Total Unpaid Contractual Principal Balance | $ 6,776 | 6,205
Construction |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance |  | 442
Related Allowance |  | 332
Recorded Investment With No Specific Allowance | $ 1,682 | 1,836
Total Recorded Investment | 1,682 | 2,278
Total Unpaid Contractual Principal Balance | $ 2,458 | $ 3,160
Home equity lines of credit |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance |  |
Related Allowance |  |
Recorded Investment With No Specific Allowance | $ 844 | $ 829
Total Recorded Investment | 844 | 829
Total Unpaid Contractual Principal Balance | 1,144 | 987
Commercial business |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With Specific Allowance | 1,600 | 11
Related Allowance | 147 | 11
Recorded Investment With No Specific Allowance | 156 | 331
Total Recorded Investment | 1,756 | 342
Total Unpaid Contractual Principal Balance | $ 1,756 | $ 1,133

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