Loans Receivable, Net and Related Allowance for Credit Losses (Details) - Schedule of Loan Portfolio $ in Thousands	3 Months Ended
Dec. 31, 2023 USD ($)
One-to-Four Family Residential [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	$ 7,180
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	43,224
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	33,060
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	27,899
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	31,288
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	91,505
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	234,156
Commercial Real Estate [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	18,235
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	82,558
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	70,448
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	66,529
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	30,007
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	131,656
Revolving Loans, Amortized Cost Basis	6,373
Revolving Loans, Converted to Term	1,540
Revolving Loans, Total	407,346
Commercial Real Estate [Member] \| Pass [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	18,235
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	82,558
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	68,224
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	66,529
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	30,007
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	131,540
Revolving Loans, Amortized Cost Basis	6,373
Revolving Loans, Converted to Term	1,540
Revolving Loans, Total	405,006
Commercial Real Estate [Member] \| Special Mention [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	116
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	116
Commercial Real Estate [Member] \| Substandard [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	2,224
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	2,224
Commercial Real Estate [Member] \| Doubtful [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Construction And Land [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	10,368
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	12,297
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	2,351
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	1,761
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	7,139
Revolving Loans, Amortized Cost Basis	725
Revolving Loans, Converted to Term
Revolving Loans, Total	34,641
Construction And Land [Member] \| Pass [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	10,368
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	12,297
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	2,351
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	1,761
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	4,665
Revolving Loans, Amortized Cost Basis	725
Revolving Loans, Converted to Term
Revolving Loans, Total	32,167
Construction And Land [Member] \| Special Mention [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Construction And Land [Member] \| Substandard [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	2,474
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	2,474
Construction And Land [Member] \| Doubtful [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Home Equity Loan [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	724
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	1,678
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	1,657
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	342
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	277
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	1,438
Revolving Loans, Amortized Cost Basis	17,953
Revolving Loans, Converted to Term
Revolving Loans, Total	24,069
Commercial Business [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	1,030
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	542
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	2,685
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	2,047
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	946
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	3,390
Revolving Loans, Amortized Cost Basis	16,403
Revolving Loans, Converted to Term
Revolving Loans, Total	27,043
Commercial Business [Member] \| Pass [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	1,030
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	542
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	2,685
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	2,047
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	946
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	3,390
Revolving Loans, Amortized Cost Basis	16,403
Revolving Loans, Converted to Term
Revolving Loans, Total	27,043
Commercial Business [Member] \| Special Mention [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Commercial Business [Member] \| Substandard [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Commercial Business [Member] \| Doubtful [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Other [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	65
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	1
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	13
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	1,793
Revolving Loans, Amortized Cost Basis	367
Revolving Loans, Converted to Term
Revolving Loans, Total	2,239
Performing Financial Instruments [Member] \| One-to-Four Family Residential [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	7,180
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	43,224
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	33,060
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	27,899
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	31,288
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	91,353
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	234,004
Performing Financial Instruments [Member] \| Home Equity Loan [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024	724
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023	1,678
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	1,657
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	342
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	277
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	1,438
Revolving Loans, Amortized Cost Basis	17,953
Revolving Loans, Converted to Term
Revolving Loans, Total	24,069
Performing Financial Instruments [Member] \| Other [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022	65
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021	1
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020	13
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	1,793
Revolving Loans, Amortized Cost Basis	367
Revolving Loans, Converted to Term
Revolving Loans, Total	2,239
Nonperforming Financial Instruments [Member] \| One-to-Four Family Residential [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior	152
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total	152
Nonperforming Financial Instruments [Member] \| Home Equity Loan [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Nonperforming Financial Instruments [Member] \| Other [Member]
One-to-four family residential
Term Loans Amortized Cost Basis by Origination Fiscal Year 2024
Term Loans Amortized Cost Basis by Origination Fiscal Year 2023
Term Loans Amortized Cost Basis by Origination Fiscal Year 2022
Term Loans Amortized Cost Basis by Origination Fiscal Year 2021
Term Loans Amortized Cost Basis by Origination Fiscal Year 2020
Term Loans Amortized Cost Basis by Origination Fiscal Year Prior
Revolving Loans, Amortized Cost Basis
Revolving Loans, Converted to Term
Revolving Loans, Total
Revolving Credit Facility [Member] \| One-to-Four Family Residential [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Revolving Credit Facility [Member] \| Commercial Real Estate [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Revolving Credit Facility [Member] \| Construction And Land [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Revolving Credit Facility [Member] \| Home Equity Loan [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Revolving Credit Facility [Member] \| Commercial Business [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Revolving Credit Facility [Member] \| Other [Member]
One-to-four family residential
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs
Current period gross charge-offs

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