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Interest-Bearing Deposits - Additional Information (Detail) - USD ($) | Jun. 30, 2025 | Jun. 30, 2024
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Federal Home Loan Banks [Abstract] |  |
Interest-bearing deposits in denominations of $100,000 or more | $ 369,226,000 | $ 367,035,000

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more. + References No definition available. + Details
Name: | us-gaap_TimeDeposits100000OrMore
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant