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Note 12 - Retirement Benefits - Contributions to Defined Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Contributions to defined benefit plans	$ 1,719	$ 1,959	$ 248	$ 499
Remaining contributions to be made	3,325		3,325
UNITED STATES | Funded Plan [Member]
Contributions to defined benefit plans	1,468	1,468	0	0
Remaining contributions to be made	2,880		2,880
UNITED STATES | Unfunded Plan [Member]
Contributions to defined benefit plans	58	114	56	111
Remaining contributions to be made	102		102
UNITED KINGDOM
Contributions to defined benefit plans	193	377	192	388
Remaining contributions to be made	0		0
GERMANY | Unfunded Plan [Member]
Contributions to defined benefit plans	0	0	0	0
Remaining contributions to be made	280		280
IRELAND
Contributions to defined benefit plans	0	$ 0	0	$ 0
Remaining contributions to be made	$ 63		$ 63

X

- Definition

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

+ References

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-Publisher FASB
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X

- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

+ References

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