v3.26.1
Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Jun. 30, 2026
Dec. 31, 2025
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 25,000,000 25,000,000
Common stock, issued (in shares) 6,269,418 927,934
Common stock, outsanding (in shares) 6,269,418 927,934
Series B Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 20,000,000 20,000,000
Preferred stock, shares issued (in shares) 1,591,209 1,529,389
Preferred stock, shares outstanding (in shares) 1,591,209 1,529,389
Preferred stock, stated value (in dollars per share) $ 3  
Series C Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 20,000,000 20,000,000
Preferred stock, shares issued (in shares) 0 19,457
Preferred stock, shares outstanding (in shares) 0 19,457
Preferred stock, stated value (in dollars per share) $ 1,080 $ 1,080