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Note 14 - Warrants - Warrants Granted (Details) - shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Warrants granted (in shares) 1,175,000 311,250
Related Party [Member]    
Warrants granted (in shares) 311,250  
Chairman and CEO [Member]    
Warrants granted (in shares) 225,000  
Chief Financial Officer [Member]    
Warrants granted (in shares) 3,750  
Director [Member]    
Warrants granted (in shares) 75,000  
Brother of CEO [Member]    
Warrants granted (in shares) 7,500