Quarterly report [Sections 13 or 15(d)]

Note 2 - Revenue (Details Textual)

v3.26.1
Note 2 - Revenue (Details Textual) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Revenue from Contract with Customers, Sales Returns, Percent 1.00% 1.00%    
Contract with Customer, Liability $ 3.5   $ 4.1 $ 4.9
Increase (Decrease) in Contract with Customer, Liability $ 2.0      
Contract with Customer, Liability, Revenue Recognized   $ 3.0 $ 2.6  
Geographic Concentration Risk [Member] | Revenue Benchmark [Member]        
Number of Major Markets 0 0    
Number of Major Customers 0 0    
Minimum [Member]        
Revenue from Contract with Customer, Sales Returns Policy Term (Day) 14 days      
Revenue from Contract with Customers, Historical Sales Returns, Percent 1.00%      
Maximum [Member]        
Revenue from Contract with Customer, Sales Returns Policy Term (Day) 1 year      
Revenue from Contract with Customers, Historical Sales Returns, Percent 11.00%