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Note 12 - Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($)
$ / shares in Units, $ in Thousands
Aug. 19, 2024
Aug. 18, 2024
SLR Credit Agreement [Member]    
Debt Instrument, Covenant, Difference Between Maximum Amount Raised, Value $ 7,000,000  
Phillip Frost [Member]    
Common Stock Shares Outstanding, Percentage   22.00%
Convertible Notes [Member]    
Proceeds from Convertible Debt $ 2,050  
Debt Instrument, Interest Rate, Stated Percentage 13.00%  
Debt Instrument, Convertible, Conversion Price (in dollars per share) $ 3.01  
Common Stock Shares Outstanding, Percentage 19.99%  
Convertible Notes [Member] | Minimum [Member]    
Debt Instrument, Convertible, Conversion Price (in dollars per share) $ 1