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CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares
 3 Months Ended 12 Months Ended
Jan. 31, 2023
Oct. 31, 2022
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 39,000,000 39,000,000
Common stock, shares issued 18,081,581 17,935,292
Common stock, shares outstanding 17,830,604 17,684,315
Treasury stock (in shares) 250,977 250,977
Series B Convertible Preferred Stock    
Preferred stock, par value (in dollars per share) $ 100.00 $ 100.00
Preferred stock, shares authorized 50,000 50,000
Preferred stock, shares issued 14,790 14,790
Preferred stock, shares outstanding 14,790 14,790
Preferred stock coupon rate 8.75% 8.75%
Series B-2 Preferred    
Preferred stock, par value (in dollars per share) $ 100.00 $ 100.00
Preferred stock, shares authorized 10,000 10,000
Preferred stock, shares issued 9,300 9,300
Preferred stock, shares outstanding 9,300 9,300
Preferred stock coupon rate 4.00% 4.00%
Liquidation preference per share (in dollars per share) $ 1,000 $ 1,000
Series A Junior Participating Preferred Stock    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 20,000 20,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0