Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Warrants (Details Textual)

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Note 8 - Warrants (Details Textual) - $ / shares
6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Nov. 30, 2019
Maximum Beneficial Ownership Percentage of Warrants 4.99%    
Maximum Beneficial Ownership Percentage of Warrants Upon Investor's Election 9.99%    
Warrant [Member]      
Class of Warrant or Right, Outstanding 786,420 786,420  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 5.19 $ 5.19  
Warrants and Rights Outstanding, Term 8 months 12 days    
Prefunded Warrants [Member]      
Class of Warrant or Right, Outstanding 887,160 253,828  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 0.001 $ 0.001 $ 0.001