Note 11. Stock Compensation Plans Deferred Share Units (Details) - Non-Employee Directors Stock Compensation Deferral Plan - Deferred Share Units Director Compensation - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Share-based Compensation Arrangements | |||
| Share-based Compensation Arrangements, Grants in Period | 16,232 | 28,288 | 26,347 |
| Share-based Compensation Arrangements, Grants in Period, Weighted Average Grant Date Fair Value | $ 28.34 | $ 19.09 | $ 25.24 |
| Share-based Compensation Arrangements, Vested in Period, Fair Value | $ 0.5 | $ 0.5 | $ 0.7 |
| Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 0 | ||
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of shares issued under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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