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Note 11 - Capital Stock - Summary of Warrant Activity (Details) - USD ($)
 9 Months Ended 24 Months Ended
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Outstanding (in shares) 105,556    
Outstanding, weighted average exercise price (in dollars per share) $ 9.95    
Outstanding, weighted average remaining contractual life (Year) 2 years 9 months 3 years 6 months  
Outstanding, aggregate intrinsic value of vested warrants $ 1,381,728   $ 1,982,342
Issued (in shares) 0    
Exercised (in shares) 0    
Expired (in shares) 0    
Outstanding (in shares) 105,556    
Outstanding, weighted average exercise price (in dollars per share) $ 9.95