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Consolidated Balance Sheets (Parentheticals) - $ / shares
Sep. 30, 2024
Sep. 30, 2023
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000
Preferred stock, Par Value (in dollars per share) $ 0.001 $ 0.001
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 10,417,609 10,417,609
Common stock, shares outstanding (in shares) 10,417,609 10,417,609
Series C Convertible Preferred Stock [Member]    
Preferred stock, shares authorized (in shares) 11,000 11,000
Preferred stock, shares issued (in shares) 350 350
Preferred stock, shares outstanding (in shares) 350 350
Series D Convertible Preferred Stock [Member]    
Preferred stock, shares authorized (in shares) 4,200 4,200
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0