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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
Jun. 30, 2024
Dec. 31, 2023
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, stated value $ 545,000 $ 545,000
Preferred stock, shares authorized (in shares) 42,000 42,000
Preferred stock, shares issued (in shares) 545 1,930
Preferred stock, shares outstanding (in shares) 545 1,930
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, auhtoirzed (in shares) 150,000,000 150,000,000
Common stock, issued (in shares) 28,249,971 16,692,124
Common stock, outstanding (in shares) 28,242,418 16,684,571
Treasury stock, shares (in shares) 7,553 7,553