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Note 11 - Capital Stock - Summary of Warrant Activity (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Outstanding (in shares) 53,562  
Outstanding, weighted average exercise price (in dollars per share) $ 9.95  
Outstanding, weighted average remaining contractual life (Year) 3 months 6 months
Outstanding, aggregate intrinsic value of vested warrants $ 3,630 $ 226,567
Issued (in shares) 0  
Exercised (in shares) (52,778)  
Redeemed (in shares) 0  
Expired (in shares) 0