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Note 8 - Trade Accounts Receivable - Customers Accounted for 10% or More of Trade Accounts Receivable, Net (Details) - Customer Concentration Risk [Member] - Accounts Receivable [Member]
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Company A [Member]    
Entity wide revenue major customers percentage 30.00% 47.00%
Company B [Member]    
Entity wide revenue major customers percentage 24.00%  
Company C [Member]    
Entity wide revenue major customers percentage   12.00%