v3.26.1
Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Jun. 30, 2026
Dec. 31, 2025
Preferred stock, shares authorized (in shares) 10,000,000  
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 45,000,000 45,000,000
Common stock, shares issued (in shares) 15,282,595 9,814,665
Common stock, shares outstanding (in shares) 15,282,595 9,814,665
Series A Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 100 100
Preferred stock, shares outstanding (in shares) 100 100
Series B Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Series C Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 427,612 427,812
Preferred stock, shares outstanding (in shares) 427,612 427,812