Loans Receivable, Aging Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2024	Jun. 30, 2023
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	$ 504,270	$ 494,830
Recorded Investment > 90 Days and Accruing	930	0
Loan receivables on nonaccrual status	0	0
Interest income recognized on non-accrual loans	0	0
Estimated gross interest income that would have been recorded if non-accrual loans had been accruing interest at their original contracted rates	79	182
Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	5,714	2,254
30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	3,158	330
60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	222	750
90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	2,334	1,174
Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	498,556	492,576
Real Estate Loans [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	445,893	438,012
Real Estate Loans [Member] | One-to-Four-Family Residential [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	186,023	179,579
Recorded Investment > 90 Days and Accruing	930	0
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	4,091	2,101
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	2,130	177
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	212	750
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	1,749	1,174
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	181,932	177,478
Real Estate Loans [Member] | Commercial [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	150,130	148,441
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Commercial [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Commercial [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Commercial [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Commercial [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Commercial [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	150,130	148,441
Real Estate Loans [Member] | Multi-Family Residential [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	40,603	28,849
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	40,603	28,849
Real Estate Loans [Member] | Land [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	31,442	26,841
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Land [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	308	36
Real Estate Loans [Member] | Land [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	36
Real Estate Loans [Member] | Land [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Land [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	308	0
Real Estate Loans [Member] | Land [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	31,134	26,805
Real Estate Loans [Member] | Construction [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	16,026	28,035
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Construction [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Construction [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Construction [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	16,026	28,035
Real Estate Loans [Member] | Equity and Second Mortgage [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	2,750	2,450
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	26	54
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	54
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	10	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	16	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	2,724	2,396
Real Estate Loans [Member] | Equity Lines of Credit [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	18,919	23,817
Recorded Investment > 90 Days and Accruing	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	238	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	238	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	18,681	23,817
Commercial Loans [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	56,959	55,364
Recorded Investment > 90 Days and Accruing	0	0
Commercial Loans [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	1,009	63
Commercial Loans [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	748	63
Commercial Loans [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Commercial Loans [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	261	0
Commercial Loans [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	55,950	55,301
Consumer Loans [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	1,418	1,454
Recorded Investment > 90 Days and Accruing	0	0
Consumer Loans [Member] | Total Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	42	0
Consumer Loans [Member] | 30-59 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	42	0
Consumer Loans [Member] | 60-89 Days Past Due [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Consumer Loans [Member] | 90 Days or More [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	0	0
Consumer Loans [Member] | Current [Member]
Aging analysis of past due loans segregated by class of loans [Abstract]
Total Loans	$ 1,376	$ 1,454