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Note 3 - Revenue Recognition - Customers with Sales and Accounts Receivable Greater Than 10% (Details) - Customer Concentration Risk [Member]
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue Benchmark [Member] | Distributor A [Member]      
Concentration risk 26.00% 31.00% 26.00%
Revenue Benchmark [Member] | Distributor B [Member]      
Concentration risk 18.00% 20.00% 19.00%
Revenue Benchmark [Member] | Distributor C [Member]      
Concentration risk 10.00%   10.00%
Accounts Receivable [Member] | Distributor A [Member]      
Concentration risk 35.00% 28.00%  
Accounts Receivable [Member] | Distributor B [Member]      
Concentration risk 14.00% 29.00%  
Accounts Receivable [Member] | Distributor C [Member]      
Concentration risk 11.00%