Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Preferred Stock Conversions (Details)

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Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Preferred Stock Conversions (Details) - $ / shares
 6 Months Ended
Jun. 29, 2023
Jun. 26, 2023
Jun. 21, 2023
Jun. 14, 2023
Jun. 13, 2023
Jun. 30, 2023
Preferred Stock [Member]            
Conversion of Stock, Shares Converted           4,511
Common Stock [Member]            
Conversion of Stock, Shares Issued           7,995,105
Series A Preferred Stock [Member]            
Conversion Price (in dollars per share)         $ 0.6200  
Series A Preferred Stock [Member] | Preferred Stock [Member]            
Conversion of Stock, Shares Converted         1,771  
Series A Preferred Stock [Member] | Common Stock [Member]            
Conversion of Stock, Shares Issued         2,947,746  
Series A-2 Preferred Stock [Member]            
Conversion Price (in dollars per share)       $ 0.6646    
Series A-2 Preferred Stock [Member] | Preferred Stock [Member]            
Conversion of Stock, Shares Converted       1,160    
Series A-2 Preferred Stock [Member] | Common Stock [Member]            
Conversion of Stock, Shares Issued       1,890,644    
Series A-3 Preferred Stock [Member]            
Conversion Price (in dollars per share)     $ 0.6704      
Series A-3 Preferred Stock [Member] | Preferred Stock [Member]            
Conversion of Stock, Shares Converted     1,200      
Series A-3 Preferred Stock [Member] | Common Stock [Member]            
Conversion of Stock, Shares Issued     2,506,437      
Series A-4 Preferred Stock [Member]            
Conversion Price (in dollars per share)   $ 0.3801        
Series A-4 Preferred Stock [Member] | Preferred Stock [Member]            
Conversion of Stock, Shares Converted   280        
Series A-4 Preferred Stock [Member] | Common Stock [Member]            
Conversion of Stock, Shares Issued   488,986        
Series A-5 Preferred Stock [Member]            
Conversion Price (in dollars per share) $ 0.5546          
Series A-5 Preferred Stock [Member] | Preferred Stock [Member]            
Conversion of Stock, Shares Converted 100          
Series A-5 Preferred Stock [Member] | Common Stock [Member]            
Conversion of Stock, Shares Issued 161,292