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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Activity in the Allowance for Loan Losses by Loan Category) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | $ 4,200 | $ 3,475
Charge-offs |  | (297)
Recoveries | 1 | 109
Provision | 201 | 250
Balance at the end of period | 4,402 | 3,537
One-to four-family residential [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 687 | 587
Charge-offs |  | (127)
Recoveries |  | 82
Provision | 11 | 21
Balance at the end of period | 698 | 563
Commercial real estate [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 1,540 | 1,277
Charge-offs |  |
Recoveries |  | 23
Provision | 50 | (1)
Balance at the end of period | 1,590 | 1,299
Construction [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 493 | 490
Charge-offs |  |
Recoveries |  | 3
Provision | 181 | (109)
Balance at the end of period | 674 | 384
Home equity lines of credit [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 109 | 57
Charge-offs |  |
Recoveries | 1 |
Provision | 11 | 74
Balance at the end of period | 121 | 131
Commercial business [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 1,151 | 956
Charge-offs |  | (170)
Recoveries |  | 1
Provision | 31 | 265
Balance at the end of period | 1,182 | 1,052
Other [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 25 | 6
Charge-offs |  |
Recoveries |  |
Provision | (21) | (2)
Balance at the end of period | 4 | 4
Unallocated [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 195 | 102
Charge-offs |  |
Recoveries |  |
Provision | (62) | 2
Balance at the end of period | $ 133 | $ 104

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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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