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Loans - Schedule of Amortized Cost Basis of Collateral-Dependent Loans by Portfolio Class (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
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Amortized Cost Basis [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment | $ 2,783 | $ 4,599
Ending allowance on collateral- dependent loans [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment |  |
Loans individually and Collectively Evaluated for Impairment [Member] | Amortized Cost Basis [Member] | One- to four-family [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment | 1,856 | 2,674
Loans individually and Collectively Evaluated for Impairment [Member] | Amortized Cost Basis [Member] | Nonresidential real estate [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment | 927 | 1,925
Loans individually and Collectively Evaluated for Impairment [Member] | Amortized Cost Basis [Member] | Commercial and Industrial [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment |  |
Loans individually and Collectively Evaluated for Impairment [Member] | Ending allowance on collateral- dependent loans [Member] | One- to four-family [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment |  |
Loans individually and Collectively Evaluated for Impairment [Member] | Ending allowance on collateral- dependent loans [Member] | Nonresidential real estate [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment |  |
Loans individually and Collectively Evaluated for Impairment [Member] | Ending allowance on collateral- dependent loans [Member] | Commercial and Industrial [Member] |  |
Residential real estate: |  |
Loans individually evaluated for impairment |  |

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- Definition Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.5.a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480418/310-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11C + Details
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