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Income Taxes - Reconciliation of Income Tax Expense at the Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	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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