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Loans Receivable - Schedule of Principal Balance Outstanding in Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Residential real estate
Total Past Due	$ 9,319	$ 7,834
Total	328,616	329,418
Pass	322,754	322,660
Special Mention	661	672
Substandard	5,201	6,086
Doubtful
Land [Member]
Residential real estate
Total Past Due
Total	2,173	1,508
Pass	2,145	1,480
Special Mention
Substandard	28	28
Doubtful
Farm [Member]
Residential real estate
Total Past Due
Total	2,616	3,023
Pass	2,616	3,023
Special Mention
Substandard
Doubtful
Nonresidential real estate [Member]
Residential real estate
Total Past Due	1,252	1,729
Total	31,004	31,698
Pass	30,230	30,195
Special Mention	573	576
Substandard	201	927
Doubtful
Commercial and industrial [Member]
Residential real estate
Total Past Due
Total	632	691
Pass	632	691
Special Mention
Substandard
Doubtful
One- to four-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	7,360	5,418
Total	249,018	251,338
Pass	244,376	246,533
Special Mention	88	96
Substandard	4,554	4,709
Doubtful
Multi-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	244	246
Total	14,569	15,505
Pass	14,569	15,505
Special Mention
Substandard
Doubtful
Construction [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	417	418
Total	11,625	9,314
Pass	11,335	9,023
Special Mention
Substandard	290	291
Doubtful
Loans on deposits [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
Total	594	813
Pass	594	813
Special Mention
Substandard
Doubtful
Home Equity [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
Total	15,476	14,643
Pass	15,476	14,643
Special Mention
Substandard
Doubtful
Automobiles [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
Total	142	134
Pass	142	134
Special Mention
Substandard
Doubtful
Unsecured [Member] | Consumer and other [Member]
Residential real estate
Total Past Due	46	23
Total	767	751
Pass	639	620
Special Mention
Substandard	128	131
Doubtful
30-59 Days Past Due [Member]
Residential real estate
Total Past Due	6,336	5,585
30-59 Days Past Due [Member] | Land [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | Farm [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | Nonresidential real estate [Member]
Residential real estate
Total Past Due	703	1,704
30-59 Days Past Due [Member] | Commercial and industrial [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | One- to four-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	5,216	3,731
30-59 Days Past Due [Member] | Multi-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	244
30-59 Days Past Due [Member] | Construction [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	127	127
30-59 Days Past Due [Member] | Loans on deposits [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | Home Equity [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | Automobiles [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
30-59 Days Past Due [Member] | Unsecured [Member] | Consumer and other [Member]
Residential real estate
Total Past Due	46	23
60-89 Days Past Due [Member]
Residential real estate
Total Past Due	1,558	958
60-89 Days Past Due [Member] | Land [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Farm [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Nonresidential real estate [Member]
Residential real estate
Total Past Due	549	25
60-89 Days Past Due [Member] | Commercial and industrial [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | One- to four-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	1,009	687
60-89 Days Past Due [Member] | Multi-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due		246
60-89 Days Past Due [Member] | Construction [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Loans on deposits [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Home Equity [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Automobiles [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
60-89 Days Past Due [Member] | Unsecured [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member]
Residential real estate
Total Past Due	1,425	1,291
90 Days or Greater [Member] | Land [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Farm [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Nonresidential real estate [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Commercial and industrial [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | One- to four-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	1,135	1,000
90 Days or Greater [Member] | Multi-family [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Construction [Member] | Residential Real Estate [Member]
Residential real estate
Total Past Due	290	291
90 Days or Greater [Member] | Loans on deposits [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Home Equity [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Automobiles [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
90 Days or Greater [Member] | Unsecured [Member] | Consumer and other [Member]
Residential real estate
Total Past Due
Loans Not Past Due [Member]
Residential real estate
Loans Not Past Due	319,297	321,584
Loans Not Past Due [Member] | Land [Member]
Residential real estate
Loans Not Past Due	2,173	1,508
Loans Not Past Due [Member] | Farm [Member]
Residential real estate
Loans Not Past Due	2,616	3,023
Loans Not Past Due [Member] | Nonresidential real estate [Member]
Residential real estate
Loans Not Past Due	29,752	29,969
Loans Not Past Due [Member] | Commercial and industrial [Member]
Residential real estate
Loans Not Past Due	632	691
Loans Not Past Due [Member] | One- to four-family [Member] | Residential Real Estate [Member]
Residential real estate
Loans Not Past Due	241,658	245,920
Loans Not Past Due [Member] | Multi-family [Member] | Residential Real Estate [Member]
Residential real estate
Loans Not Past Due	14,325	15,259
Loans Not Past Due [Member] | Construction [Member] | Residential Real Estate [Member]
Residential real estate
Loans Not Past Due	11,208	8,896
Loans Not Past Due [Member] | Loans on deposits [Member] | Consumer and other [Member]
Residential real estate
Loans Not Past Due	594	813
Loans Not Past Due [Member] | Home Equity [Member] | Consumer and other [Member]
Residential real estate
Loans Not Past Due	15,476	14,643
Loans Not Past Due [Member] | Automobiles [Member] | Consumer and other [Member]
Residential real estate
Loans Not Past Due	142	134
Loans Not Past Due [Member] | Unsecured [Member] | Consumer and other [Member]
Residential real estate
Loans Not Past Due	$ 721	$ 728

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