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, shares authorized (in shares) 10,000,000 10,000,000
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 500,000,000 500,000,000
Common stock, shares issued (in shares) 2,692,473 1,738,955
Common stock, shares outstanding (in shares) 2,692,473 1,738,955
Series B Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 3,000 3,000
Preferred stock, shares issued (in shares) 1,632 2,229
Preferred stock, shares outstanding (in shares) 1,632 2,229
Series C1 Convertible Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 3,687 3,687
Preferred stock, shares issued (in shares) 3,470 0
Preferred stock, shares outstanding (in shares) 3,470 0
Series J Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 9,490 9,490
Preferred stock, shares issued (in shares) 9,490 9,490
Preferred stock, shares outstanding (in shares) 9,490 9,490
Series X Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 15,404 15,404
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0