Note 13 - Income Taxes - Income Tax Rate Reconciliation (Details) - USD ($)		3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
		Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2025	Sep. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
U.S. federal statutory income tax rate							$ 160,905,000
U.S. federal statutory income tax rate, Percent							21.00%	21.00%	21.00%
Research credits							$ (19,491,000)
Research credits, Percent							(2.50%)
Share-based payments							$ 39,963,000
Share-based payments, Percent							5.20%	1.90%	2.20%
Other							$ 4,064,000
Other, Percent							0.50%
Global intangible low-taxed income							$ 22,514,000
Global intangible low-taxed income, Percent							2.90%
Subpart F income							$ 3,541,000
Subpart F income, Percent							0.50%
Effects of changes in tax laws or rates enacted in the current period							$ 0
Effects of changes in tax laws or rates enacted in the current period, Percent							0.00%
Changes in valuation allowances							$ 0
Changes in valuation allowances, Percent							0.00%	623.80%	2.90%
Other							$ 508,000
Other, Percent							0.10%	0.70%	0.10%
Domestic state and local income taxes, net of federal effect (a)							$ (67,000)
Domestic state and local income taxes, net of federal effect, Percent	[1]						0.00%
Statutory income tax rate differential, Percent								(21.40%)	(21.90%)
Other, Percent							0.10%	0.70%	0.10%
Worldwide changes in unrecognized tax benefits							$ 1,653,000
Worldwide changes in unrecognized tax benefits, Percent							0.20%
Effective tax rate		$ 25,809,000	$ 41,969,000	$ 38,838,000	$ 80,807,000	$ 106,616,000	$ 144,733,000	$ (1,019,146,000)	$ 78,467,000
Effective tax rate, Percent							18.90%	(177.90%)	15.50%
Foreign Tax Jurisdiction [Member] | Swiss Federal Tax Administration (FTA) [Member]
Other							$ 3,499,000
Other, Percent							0.40%
Statutory income tax rate differential							$ (106,770,000)
Statutory income tax rate differential, Percent							(13.90%)
Cantonal taxes, net of federal effect							$ 59,864
Cantonal taxes, net of federal effect							7.80%
Nontaxable and nondeductible items, net							$ (21,381,000)
Nontaxable and nondeductible items, net, Percent							(2.80%)
Other, Percent							0.40%
Foreign Tax Jurisdiction [Member] | Other Foreign Tax Authority [Member]
Statutory income tax rate differential							$ (4,069,000)
Statutory income tax rate differential, Percent							(0.50%)

[1] State taxes in Arizona, California and Florida make up the majority (greater than 50%) of the tax effect in this category.