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Fair Value Measurements and Fair Value of Financial Instruments - Fair Value Measurements for Loans Evaluated Individually and Foreclosed Real Estate (Details) - Level 3 [Member] - USD ($) $ in Thousands | Mar. 31, 2026 | Jun. 30, 2025
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Carrying Amount [Member] |  |
Fair Value Measurements and Fair Value of Financial Instruments [Abstract] |  |
Loans evaluated individually | $ 915 | $ 751
Estimated Fair Value [Member] |  |
Fair Value Measurements and Fair Value of Financial Instruments [Abstract] |  |
Loans evaluated individually | $ 443 | $ 202

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