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LOANS RECEIVABLE, NET (Schedule of Impaired Loans by Class) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Financing Receivable, Impaired [Line Items]
Recorded Investment With Specific Allowance	$ 2,835	$ 2,905
Related Allowance	224	221
Recorded Investment With No Specific Allowance	8,233	11,256
Total Recorded Investment	11,068	14,161
Total Unpaid Contractual Principal Balance	11,133	14,430
One-to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Specific Allowance
Related Allowance
Recorded Investment With No Specific Allowance	2,711	2,601
Total Recorded Investment	2,711	2,601
Total Unpaid Contractual Principal Balance	2,711	2,601
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Specific Allowance		599
Related Allowance		46
Recorded Investment With No Specific Allowance	2,270	3,806
Total Recorded Investment	2,270	4,405
Total Unpaid Contractual Principal Balance	2,270	4,405
Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Specific Allowance	2,835	2,306
Related Allowance	224	175
Recorded Investment With No Specific Allowance	1,745	2,835
Total Recorded Investment	4,580	5,141
Total Unpaid Contractual Principal Balance	4,645	5,206
Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Specific Allowance
Related Allowance
Recorded Investment With No Specific Allowance	1,507	2,014
Total Recorded Investment	1,507	2,014
Total Unpaid Contractual Principal Balance	$ 1,507	$ 2,218

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-Publisher FASB
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-Section 50
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