v3.26.1
Note 14 - Shareholders' Equity - Summary of Warrant Activity (Details) - $ / shares
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Outstanding, warrants (in shares) 4,135,911 2,936,234 2,936,234  
Outstanding, weighted average exercise price (in dollars per share) $ 34.42 $ 48.12 $ 48.12  
Outstanding, weighted average remaining contractual term (Year) 3 years 9 months 18 days 4 years 9 months 18 days 4 years 3 months 18 days 5 years 29 days
Issued, warrants (in shares) 0 1,199,677    
Issued, weighted average exercise price (in dollars per share) $ 0 $ 0.88    
Expired, warrants (in shares) 0 0    
Expired, weighted average exercise price (in dollars per share) $ 0 $ 0    
Outstanding, warrants (in shares) 4,135,911 4,135,911 4,135,911 2,936,234
Outstanding, weighted average exercise price (in dollars per share) $ 34.42 $ 34.42 $ 34.42 $ 48.12
Exercisable, warrants (in shares) 4,135,911 4,135,911    
Exercisable, weighted average exercise price (in dollars per share) $ 34.42 $ 34.42    
Exercisable, weighted average remaining contractual term (Year) 3 years 9 months 18 days 4 years 9 months 18 days