LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of Classes of the Loan Portfolio Summarized by Aging Categories) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021
Financing Receivable, Past Due [Line Items]
Current	$ 621,213	$ 586,458
Total Past Due	4,580	8,159
Non - Accrual	4,580	8,159
Total Loans	625,793	594,617
30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	4,580	8,159
One-to four-family residential [Member]
Financing Receivable, Past Due [Line Items]
Current	208,018	201,868
Total Past Due		1,151
Non - Accrual		1,151
Total Loans	208,018	203,019
One-to four-family residential [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
One-to four-family residential [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
One-to four-family residential [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		1,151
Commercial real estate [Member]
Financing Receivable, Past Due [Line Items]
Current	335,384	279,769
Total Past Due		1,079
Non - Accrual		1,079
Total Loans	335,384	280,848
Commercial real estate [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial real estate [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial real estate [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		1,079
Construction [Member]
Financing Receivable, Past Due [Line Items]
Current	18,572	15,770
Total Past Due	4,580	4,580
Non - Accrual	4,580	4,580
Total Loans	23,152	20,350
Construction [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Construction [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Construction [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	4,580	4,580
Home equity lines of credit [Member]
Financing Receivable, Past Due [Line Items]
Current	15,568	17,930
Total Past Due
Non - Accrual
Total Loans	15,568	17,930
Home equity lines of credit [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Home equity lines of credit [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Home equity lines of credit [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial business [Member]
Financing Receivable, Past Due [Line Items]
Current	40,573	67,370
Total Past Due		1,349
Non - Accrual		1,349
Total Loans	40,573	68,719
Commercial business [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial business [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial business [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		1,349
Other [Member]
Financing Receivable, Past Due [Line Items]
Current	3,098	3,751
Total Past Due
Non - Accrual
Total Loans	3,098	3,751
Other [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Other [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Other [Member] \| 90 Days + Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due