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LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Classes of the Loan Portfolio Summarized by Aging Categories) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Sep. 30, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Current | $ 577,043 | $ 586,458
Total Past Due | 6,311 | 8,159
Non - Accrual | 6,213 | 8,159
Total loans receivable | 583,354 | 594,617
30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 98 |
Non - Accrual |  |
90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 6,213 |
Non - Accrual |  |
One-to four-family residential [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 200,679 | 201,868
Total Past Due | 128 | 1,151
Non - Accrual | 30 | 1,151
Total loans receivable | 200,807 | 203,019
One-to four-family residential [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
One-to four-family residential [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 98 |
Non - Accrual |  |
One-to four-family residential [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 30 |
Non - Accrual |  | 8,159
Commercial real estate [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 278,735 | 279,769
Total Past Due | 254 | 1,079
Non - Accrual | 254 | 1,079
Total loans receivable | 278,989 | 280,848
Commercial real estate [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Commercial real estate [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Commercial real estate [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 254 |
Non - Accrual |  | 1,151
Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 19,702 | 15,770
Total Past Due | 4,580 | 4,580
Non - Accrual | 4,580 | 4,580
Total loans receivable | 24,282 | 20,350
Construction [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Construction [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Construction [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 4,580 |
Non - Accrual |  | 1,079
Home equity lines of credit [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 17,667 | 17,930
Total Past Due |  |
Non - Accrual |  |
Total loans receivable | 17,667 | 17,930
Home equity lines of credit [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Home equity lines of credit [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Home equity lines of credit [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  | 4,580
Commercial business [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 56,971 | 67,370
Total Past Due | 1,349 | 1,349
Non - Accrual | 1,349 | 1,349
Total loans receivable | 58,320 | 68,719
Commercial business [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Commercial business [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Commercial business [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due | 1,349 |
Non - Accrual |  |
Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 3,289 | 3,751
Total Past Due |  |
Non - Accrual |  |
Total loans receivable | 3,289 | 3,751
Other [Member] | 30-59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Other [Member] | 60-89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  |
Other [Member] | 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due |  |
Non - Accrual |  | $ 1,349

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