Annual report [Section 13 and 15(d), not S-K Item 405]

Note 13 - Share-based Compensation - Stock Option Assumptions (Details)

v3.25.1
Note 13 - Share-based Compensation - Stock Option Assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Expected dividend yield 0.00% 0.00%
Minimum [Member]    
Common share fair value (in dollars per share) $ 2.4 $ 1.57
Risk-free interest rate 3.80% 3.50%
Expected option life (years) (Year) 5 years 6 months 5 years
Expected stock price volatility 83.00% 101.70%
Maximum [Member]    
Common share fair value (in dollars per share) $ 5.38 $ 3.24
Risk-free interest rate 4.50% 4.60%
Expected option life (years) (Year) 5 years 8 months 12 days 5 years 8 months 12 days
Expected stock price volatility 124.10% 108.10%