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LOANS RECEIVABLE, NET (Schedule of Activity in the Allowance for Loan Losses by Loan Category) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | $ 6,400 | $ 4,888
Charge-offs | (52) | (269)
Recoveries | 98 | 115
Provision (credit) | 1,629 | 1,666
Balance at the end of period | 8,075 | 6,400
One-to four-family residential [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 1,035 | 731
Charge-offs |  |
Recoveries | 1 | 11
Provision (credit) | 100 | 293
Balance at the end of period | 1,136 | 1,035
Commercial real estate [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 3,232 | 2,066
Charge-offs | (51) |
Recoveries |  | 5
Provision (credit) | 563 | 1,161
Balance at the end of period | 3,744 | 3,232
Construction [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 672 | 511
Charge-offs |  | (65)
Recoveries |  |
Provision (credit) | (78) | 226
Balance at the end of period | 594 | 672
Home equity lines of credit [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 179 | 138
Charge-offs |  |
Recoveries | 1 |
Provision (credit) | 52 | 41
Balance at the end of period | 232 | 179
Commercial business [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 1,034 | 1,184
Charge-offs |  | (204)
Recoveries | 96 | 99
Provision (credit) | 916 | (45)
Balance at the end of period | 2,046 | 1,034
Other [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 1 | 8
Charge-offs | (1) |
Recoveries |  |
Provision (credit) | 15 | (7)
Balance at the end of period | 15 | 1
Unallocated [Member] |  |
Activity in the allowance for loan losses by loan category: |  |
Balance at beginning of period | 247 | 250
Charge-offs |  |
Recoveries |  |
Provision (credit) | 61 | (3)
Balance at the end of period | $ 308 | $ 247

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