v3.26.1
Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2026
Dec. 31, 2025
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, authorized (in shares) 10,000,000 10,000,000
Preferred stock, issued (in shares) 403 403
Preferred stock, outstandin (in shares) 403 403
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 200,000,000 200,000,000
Common stock, shares issued (in shares) 2,879,857 2,525,778
Common stock, shares outstanding (in shares) 2,879,857 2,525,778
Series B Preferred Stock [Member]    
Temporary equity, par value (in dollars per share) $ 0.001 $ 0.001
Temporary equity, authorized (in shares) 8,400 8,400
Temporary equity, issued (in shares) 2,155 2,155
Temporary equity, outstanding (in shares) 2,155 2,155
Preferred stock, par value (in dollars per share) $ 0.0001  
Preferred stock, issued (in shares) 2,155 2,155
Preferred stock, outstandin (in shares) 2,155 2,155
Series C Preferred Stock [Member]    
Temporary equity, par value (in dollars per share) $ 0.001 $ 0.001
Temporary equity, authorized (in shares) 75,000 75,000
Temporary equity, issued (in shares) 12,000 11,767
Temporary equity, outstanding (in shares) 12,000 11,767
Preferred stock, par value (in dollars per share) $ 0.0001  
Preferred stock, issued (in shares) 11,767 12,000
Preferred stock, outstandin (in shares) 11,767 12,000