Note 13 - Retirement Benefit Plans - Benefit Payments Expected to be Paid (Details) $ in Millions	Dec. 31, 2020 USD ($)
Postretirement Health Coverage [Member]
2021	$ 0.7
2022	0.6
2023	0.6
2024	0.6
2025	0.6
2026 to 2030	2.5
Total	5.6
UNITED STATES \| Nonqualified Plan [Member]
2021	0.2
2022	0.1
2023	0.1
2024	0.1
2025	0.1
2026 to 2030	0.4
Total	1.0
Foreign Plan [Member] \| Pension Plan [Member]
2021	0.3
2022	0.7
2023	0.8
2024	0.8
2025	0.8
2026 to 2030	4.0
Total	$ 7.4

Amount of benefit for defined benefit plan expected to be paid.

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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