Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Sales of Shares Under Common Stock Purchase Agreement (Details Textual)

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Note 9 - Sales of Shares Under Common Stock Purchase Agreement (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Oct. 18, 2023
Jul. 08, 2022
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.001   $ 0.001 $ 0.001  
Stock Issued During Period, Value, New Issues   $ 37,631      
B. Riley Principal Capital II, LLC (the “Selling Stockholder”) [Member]          
Purchase Agreement, Maximum Amount to be Sold         $ 15,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)         $ 0.001
Common Stock, Maximum Shares Sold (in shares)         450,000
B. Riley Principal Capital II, LLC (the “Selling Stockholder”) [Member] | Registration Rights Agreement [Member]          
Stock Issued During Period, Shares, New Issues (in shares) 0 7,429      
Stock Issued During Period, Value, New Issues $ 0 $ 53,453      
Shares Issued, Average Price Per Share (in dollars per share)   $ 7.2      
Shares Issued, Fees Per Share (in dollars per share)   $ 0.4