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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Classes of the Loan Portfolio Summarized by Bank's Internal Risk Rating System) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | $ 464,658 | $ 457,871
Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 452,480 | 447,932
Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 2,808 | 209
Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 8,610 | 8,733
Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 760 | 997
One-to four-family residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 174,360 | 173,235
One-to four-family residential [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 170,906 | 169,596
One-to four-family residential [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 208 | 209
One-to four-family residential [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 3,246 | 3,430
One-to four-family residential [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Commercial real estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 203,351 | 199,510
Commercial real estate [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 197,963 | 196,838
Commercial real estate [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 2,600 |
Commercial real estate [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 2,788 | 2,672
Commercial real estate [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 16,857 | 14,939
Construction [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 14,391 | 12,461
Construction [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Construction [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 2,466 | 2,478
Construction [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Home equity lines of credit [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 22,918 | 21,967
Home equity lines of credit [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 22,889 | 21,814
Home equity lines of credit [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Home equity lines of credit [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 29 | 153
Home equity lines of credit [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Commercial business [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 38,882 | 38,865
Commercial business [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 38,053 | 37,868
Commercial business [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Commercial business [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 69 |
Commercial business [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 760 | 997
Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 8,290 | 9,355
Other [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 8,278 | 9,355
Other [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |
Other [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross | 12 |
Other [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans and Leases Receivable, Gross |  |

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