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Note 15 - Debt - Long-term debt (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Revolving credit facility $ 34  
Current portion (4) $ (4)
Long-term debt, excluding current portion 30 $ 28
Term Loan [Member]    
Revolving credit facility 30  
Revolving Credit Facility [Member] | Line of Credit [Member]    
Revolving credit facility $ 4