Note 13 - Financial Instruments (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivatives Hedging Instruments	$ 0	$ 0
Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Long-Term Debt, Fair Value	436,000,000	396,000,000
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0	3,000,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	3,000,000	0
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	$ 251,000,000	$ 279,000,000