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Income Taxes - Reconciliation of Income Tax Expense at the Statutory Rate (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Income Taxes Paid, Net [Abstract]
Computed at the statutory rate	$ 292	$ 200	$ 824	$ 383
Decrease resulting from
Tax exempt interest	(7)	(6)	(21)	(24)
Cash surrender value of life insurance	(24)	(24)	(72)	(67)
State income taxes	113	66	295	127
Other	6	7	35	46
Actual expense	$ 380	$ 243	$ 1,061	$ 465

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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