Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Mar. 31, 2021
Sep. 30, 2020
Stockholders' equity:    
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 1,555,175 1,589,101
Common stock, shares outstanding 1,555,175 1,589,101
Treasury stock, shares 533,011 499,805
Series B Convertible Preferred Stock    
Stockholders' equity:    
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, issued 315,790 214,244
Preferred stock, outstanding 315,790 214,244
Series E Convertible Preferred Stock    
Stockholders' equity:    
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 200,000 200,000
Preferred stock, issued 47,840 47,840
Preferred stock, outstanding 47,840 47,840
Preferred stock, liquidation preference per share $ 0.30 $ 0.30
Treasury stock, shares 50,000 50,000