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Loans Receivable (Details) - Schedule of allowance for loan losses and the recorded investment in loans by portfolio - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Residential real estate:
Unpaid principal balance and recorded investment	$ 278,287	$ 299,524
Ending allowance attributed to loans	1,603	1,622
Loans individually evaluated for impairment [Member]
Residential real estate:
Loans individually evaluated	5,622	6,041
Loans acquired with deteriorated credit quality	476	595
Unpaid principal balance and recorded investment	6,098	6,636
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | One-to four-family [Member]
Residential real estate:
Loans individually evaluated	3,408	3,738
Loans acquired with deteriorated credit quality	476	595
Unpaid principal balance and recorded investment	3,884	4,333
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | Multi-family [Member]
Residential real estate:
Loans individually evaluated	580	646
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	580	646
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | Farm [Member]
Residential real estate:
Loans individually evaluated	274	274
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	274	274
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | Nonresidential real estate [Member]
Residential real estate:
Loans individually evaluated	1,339	1,367
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	1,339	1,367
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | Home equity [Member]
Residential real estate:
Loans individually evaluated	16
Loans acquired with deteriorated credit quality
Unpaid principal balance and recorded investment	16
Ending allowance attributed to loans
Loans individually evaluated for impairment [Member] | Unsecured [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
Loans collectively evaluated for impairment [Member]
Residential real estate:
Unpaid principal balance and recorded investment	272,189	292,888
Ending allowance attributed to loans	1,603	1,622
Loans collectively evaluated for impairment [Member] | One-to four-family [Member]
Residential real estate:
Unpaid principal balance and recorded investment	213,360	219,792
Ending allowance attributed to loans	831	794
Loans collectively evaluated for impairment [Member] | Multi-family [Member]
Residential real estate:
Unpaid principal balance and recorded investment	11,285	19,135
Ending allowance attributed to loans	212	291
Loans collectively evaluated for impairment [Member] | Farm [Member]
Residential real estate:
Unpaid principal balance and recorded investment	2,000	1,960
Ending allowance attributed to loans	6	5
Loans collectively evaluated for impairment [Member] | Nonresidential real estate [Member]
Residential real estate:
Unpaid principal balance and recorded investment	32,144	34,125
Ending allowance attributed to loans	526	494
Loans collectively evaluated for impairment [Member] | Home equity [Member]
Residential real estate:
Unpaid principal balance and recorded investment	7,415	7,135
Ending allowance attributed to loans	17	15
Loans collectively evaluated for impairment [Member] | Unsecured [Member]
Residential real estate:
Unpaid principal balance and recorded investment	554	537
Ending allowance attributed to loans	1	1
Loans collectively evaluated for impairment [Member] | Construction [Member]
Residential real estate:
Unpaid principal balance and recorded investment	2,877	5,433
Ending allowance attributed to loans	6	12
Loans collectively evaluated for impairment [Member] | Land [Member]
Residential real estate:
Unpaid principal balance and recorded investment	315	1,308
Ending allowance attributed to loans		3
Loans collectively evaluated for impairment [Member] | Commercial nonmortgage [Member]
Residential real estate:
Unpaid principal balance and recorded investment	1,148	2,259
Ending allowance attributed to loans	3	5
Loans collectively evaluated for impairment [Member] | Loans on deposits [Member]
Residential real estate:
Unpaid principal balance and recorded investment	997	1,129
Ending allowance attributed to loans	1	2
Loans collectively evaluated for impairment [Member] | Automobile [Member]
Residential real estate:
Unpaid principal balance and recorded investment	94	75
Ending allowance attributed to loans

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