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Loans Receivable (Details) - Schedule of allowance for loan losses and the recorded investment in loans by portfolio - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Residential real estate:
Unpaid principal balance and recorded investment	$ 270,880	$ 299,524
Ending allowance attributed to loans	1,484	1,622
Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	5,280	6,041
Loans acquired with deteriorated credit quality	497	595
Unpaid principal balance and recorded investment	5,777	6,636
Ending allowance attributed to loans
Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	265,103	292,888
Ending allowance attributed to loans	1,484	1,622
One-to Four-Family [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	3,250	3,738
Loans acquired with deteriorated credit quality	497	595
Unpaid principal balance and recorded investment	3,747	4,333
Ending allowance attributed to loans
One-to Four-Family [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	205,597	219,792
Ending allowance attributed to loans	759	794
Multi-Family [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	574	646
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	574	646
Ending allowance attributed to loans
Multi-Family [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	12,724	19,135
Ending allowance attributed to loans	223	291
Farm [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	273	274
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	273	274
Ending allowance attributed to loans
Farm [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	1,566	1,960
Ending allowance attributed to loans	6	5
Nonresidential Real Estate [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	1,091	1,367
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	1,091	1,367
Ending allowance attributed to loans
Nonresidential Real Estate [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	32,155	34,125
Ending allowance attributed to loans	461	494
Home Equity [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	87
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	87
Ending allowance attributed to loans
Home Equity [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	7,575	7,135
Ending allowance attributed to loans	22	15
Unsecured [Member] | Loans Individually Evaluated for Impairment [Member]
Residential real estate:
Loans individually evaluated	5	16
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	5	16
Ending allowance attributed to loans
Unsecured [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	504	537
Ending allowance attributed to loans	1	1
Construction [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	1,891	5,433
Ending allowance attributed to loans	5	12
Land [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	1,097	1,308
Ending allowance attributed to loans	4	3
Commercial Nonmortgage [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	1,032	2,259
Ending allowance attributed to loans	2	5
Loans on Deposits [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	891	1,129
Ending allowance attributed to loans	1	2
Automobile [Member] | Loans Collectively Evaluated for Impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	71	75
Ending allowance attributed to loans

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