Stock Benefit Plans - Schedule of Stock Option Award Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Beginning balance, Shares	116,275	228,603
Granted, Shares	0	1,785
Exercised, Shares	(587)	(113,991)
Forfeited, Shares	0	0
Expired, Shares	(2,524)	(122)
Ending balance, Shares	113,164	116,275	228,603
Exercisable at June 30, 2026, Shares	113,164
Beginning balance, Weighted Average Exercise Price	$ 18.97	$ 13.95
Granted, Weighted Average Exercise Price	0	18.63
Exercised, Weighted Average Exercise Price	11.78	8.91
Forfeited, Weighted Average Exercise Price	0	0
Expired, Weighted Average Exercise Price	15.08	14.24
Ending balance, Weighted Average Exercise Price	19.09	$ 18.97	$ 13.95
Exercisable at June 30, 2026, Weighted Average Exercise Price	$ 19.09
Weighted Average Remaining Contractual Life (In years)	2 years 1 month 13 days	3 years 21 days	3 years 2 months 23 days
Exercisable at June 30, 2026, Weighted Average Remaining Contractual Life (In years)	2 years 1 month 13 days
Aggregate Intrinsic Value	$ 16	$ 31	$ 912
Exercisable at June 30, 2026, Aggregate Intrinsic Value	$ 16

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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