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Note 14 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021
Effective Income Tax Rate Reconciliation, Percent, Total	(37.00%)	19.70%
Unrecognized Tax Benefits, Ending Balance	$ 4.7		$ 4.7
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	0.6		0.6
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	4.6		$ 4.6
Foreign Tax Authority [Member] | Tax and Customs Administration, Netherlands [Member]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ (3.4)
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year			2018 2017 2018 2019 2020 2021
State and Local Jurisdiction [Member]
Open Tax Year			2015 2016 2017 2018 2019 2020 2021

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Tax year that remains open to examination under enacted tax laws, in YYYY format.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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