v3.26.1
Note 12 - Revenue From Product Sales (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Concentration Risk, Number of Customers     2    
Revenue Benchmark [Member] | Customer Concentration Risk [Member]          
Concentration Risk, Number of Customers     2 2  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Largest Customer [Member]          
Concentration Risk, Percentage 52.00% 75.00% 52.00% 80.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Largest Customer [Member]          
Concentration Risk, Percentage     34.00%   59.00%