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) $ 0.0001 $ 0.0001
Common stock, authorized (in shares) 50,000,000 50,000,000
Common stock, issued (in shares) 10,698,139 10,595,638
Common stock, outstanding (in shares) 10,698,139 10,595,638
Series A Convertible Preferred Stock [Member]    
Temporary equity, par value (in dollars per share) $ 0.0001 $ 0.0001
Temporary equity, shares authorized (in shares) 22,000 22,000
Temporary equity, shares issued (in shares) 22,000 22,000
Temporary equity, shares outstanding (in shares) 22,000 22,000
Preferred stock, par value (in dollars per share) $ 0.0001  
Preferred stock, shares authorized (in shares) 22,000  
Preferred stock, shares issued (in shares)   22,000
Preferred stock, shares outstanding (in shares) 22,000 22,000
Undesignated Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 9,978,000 9,978,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0