v3.26.1
Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2026
Dec. 31, 2025
Preferred stock, shares authorized (in shares) 25,000,000  
Common stock, par value (in dollars per share) $ 0.0005 $ 0.0005
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 9,428,707 8,772,872
Series B Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0 $ 0
Preferred stock, shares authorized (in shares) 2,000,000 2,000,000
Preferred stock, shares issued (in shares) 985,063 985,063