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Related Party Transactions - Changes in Loans Outstanding (Detail) - Management [Member] - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Related Party Transaction [Line Items] |  |
Balance, beginning of year | $ 2,527 | $ 2,798
New loans | 425 | 301
Repayments | (492) | (572)
Balance, end of year | $ 2,460 | $ 2,527

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