Note 10 - Retirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| UNITED STATES | ||
| Service cost | $ 0 | $ 0 |
| Interest cost | 2,231 | 2,288 |
| Expected return on plan assets | (2,191) | (2,521) |
| Recognized net actuarial loss | 1,284 | 1,175 |
| Amortization of prior service cost | 0 | 0 |
| Net periodic (benefit) cost | 1,324 | 942 |
| Foreign Plan [Member] | ||
| Service cost | 53 | 58 |
| Interest cost | 321 | 315 |
| Expected return on plan assets | (339) | (304) |
| Recognized net actuarial loss | 8 | 0 |
| Amortization of prior service cost | (3) | (1) |
| Net periodic (benefit) cost | $ 40 | $ 68 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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