Note 7 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Netherlands (2020: U.K.)	$ 283	$ 216	$ (707)
Foreign	42,308	16,777	17,883
Total current tax	42,591	16,993	17,176
Netherlands (2020: U.K.)	0	0	0
Foreign	(1,344)	(726)	(20,576)
Total deferred tax	(1,344)	(726)	(20,576)
Income tax expense (benefit)	$ 41,247	$ 16,267	$ (3,400)

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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Amount of deferred federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, deferred national tax expense (benefit) for non-US (United States of America) jurisdiction.

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