v3.25.1
Note 6 - Stockholders' Equity and Stock-based Compensation - Summary of Market-based Option Activity (Details) - Market-based Options [Member] - $ / shares
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Options balances, number of shares (in shares) 2,461,389  
Options balances, weighted average exercise price (in dollars per share) $ 6.95  
Options balances, weighted average remaining life (Year) 8 years 3 months 29 days 8 years 5 months 4 days
Options granted, number of shares (in shares) 232,500  
Options granted, weighted average exercise price (in dollars per share) $ 19.44  
Options exercised, number of shares (in shares) 0  
Options exercised, weighted average exercise price (in dollars per share) $ 0  
Options canceled, number of shares (in shares) 0  
Options canceled, weighted average exercise price (in dollars per share) $ 0  
Options expired, number of shares (in shares) 0  
Options expired, weighted average exercise price (in dollars per share) $ 0  
Options balances, number of shares (in shares) 2,693,889 2,461,389
Options balances, weighted average exercise price (in dollars per share) $ 8.03 $ 6.95
Options exercisable, number of shares (in shares) 0  
Options exercisable, weighted average exercise price (in dollars per share) $ 0