Note 11. Stock Compensation Plans - TSR Share Activity (Details) - Total Shareholder Return Performance Share - 2023 Equity Incentive Plan [Member] - $ / shares	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Share-based Compensation Arrangements
Performance Shares, Shares Outstanding, Beginning of Period	101,417
Share-based Compensation Arrangements, Grants in Period	61,286
Performance Shares, Shares Vested	0	0	0
Performance Shares, Shares Forfeited	(42,626)
Performance Shares, Shares Outstanding, End of Period	120,077	101,417
Performance Shares, Weighted Average Grant Date Fair Value of Shares Outstanding, Beginning of Period	$ 22.96
Share-based Compensation Arrangements, Grants in Period, Weighted Average Grant Date Fair Value	48.49
Performance Shares, Weighted Average Grant Date Fair Value of Shares Vested	0
Performance Shares, Weighted Average Grant Date Fair Value of Shares Forfeited	16.88
Performance Shares, Weighted Average Grant Date Fair Value of Shares Outstanding, End of Period	$ 38.14	$ 22.96
Performance Shares, Average Vesting Period for Unrecognized Compensation Cost	1 year 8 months 12 days
Minimum
Share-based Compensation Arrangements
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	0.00%
Maximum
Share-based Compensation Arrangements
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	200.00%

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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