Loans Receivable, Grading of Loans, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	$ 411,428	$ 392,635
Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	404,591	385,576
Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	3,000	3,112
Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	3,837	3,947
Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	366,854	347,443
Real Estate Loans [Member] | One-to-Four-Family Residential [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	126,511	120,014
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	124,041	117,464
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	348	352
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	2,122	2,198
Real Estate Loans [Member] | One-to-Four-Family Residential [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Commercial [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	141,465	127,589
Real Estate Loans [Member] | Commercial [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	137,098	123,292
Real Estate Loans [Member] | Commercial [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	2,652	2,548
Real Estate Loans [Member] | Commercial [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	1,715	1,749
Real Estate Loans [Member] | Commercial [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	28,618	30,411
Real Estate Loans [Member] | Multi-Family Residential [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	28,618	30,411
Real Estate Loans [Member] | Multi-Family Residential [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Multi-Family Residential [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Land [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	22,752	22,127
Real Estate Loans [Member] | Land [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	22,752	22,127
Real Estate Loans [Member] | Land [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Land [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Land [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Construction [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	26,913	27,884
Real Estate Loans [Member] | Construction [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	26,913	27,884
Real Estate Loans [Member] | Construction [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Construction [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Construction [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	1,630	1,587
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	1,630	1,587
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity and Second Mortgage [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	18,965	17,831
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	18,965	17,831
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Real Estate Loans [Member] | Equity Lines of Credit [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Commercial Loans [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	43,868	44,487
Commercial Loans [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	43,868	44,275
Commercial Loans [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	212
Commercial Loans [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Commercial Loans [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Consumer Loans [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	706	705
Consumer Loans [Member] | Pass and Pass Watch [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	706	705
Consumer Loans [Member] | Special Mention [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Consumer Loans [Member] | Substandard [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	0	0
Consumer Loans [Member] | Doubtful [Member]
Grading of Loans, Segregated by Class of Loans [Abstract]
Gross loans receivable	$ 0	$ 0