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Income Taxes - Reconciliation of Income Tax Expense at the Statutory Rate (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023
Income Taxes Paid, Net [Abstract] |  |
Computed at the statutory rate | $ 495 | $ 1,315
Increase (decrease) resulting from |  |
Tax exempt interest | (30) | (22)
Cash surrender value of life insurance | (106) | (81)
State income taxes | 152 | 451
Other | 54 | (63)
Actual tax expense | $ 565 | $ 1,600
Tax rate as a percentage of pre-tax income | 24.00% | 25.60%

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