Note 10 - Retirement Benefits - Contributions to Defined Benefit Plans (Details) $ in Thousands	3 Months Ended
Sep. 30, 2026 USD ($)
Contributions to defined benefit plans	$ 159
Remaining contributions to be made	4,793
UNITED STATES \| Defined Benefit Plan, Funded Plan [Member]
Contributions to defined benefit plans	85
Remaining contributions to be made	4,524
UNITED STATES \| Defined Benefit Plan, Unfunded Plan [Member]
Contributions to defined benefit plans	4
Remaining contributions to be made	60
GERMANY \| Defined Benefit Plan, Unfunded Plan [Member]
Contributions to defined benefit plans	70
Remaining contributions to be made	$ 209

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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+ Details