CONDENSED CONSOLIDATED BALANCE SHEETS (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Apr. 30, 2024	Oct. 31, 2023
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000	100,000
Preferred stock, shares issued (in shares)	5,600	5,600
Preferred stock, shares outstanding (in shares)	5,600	5,600
Preferred stock, liquidation preference	$ 140,000	$ 140,000
Common Class A [Member]
Common stock, shares authorized (in shares)	16,000,000	16,000,000
Common stock, shares issued (in shares)	6,288,200	6,247,308
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares held in Treasury (in shares)	1,007,426	901,379
Common Class B [Member]
Common stock, shares authorized (in shares)	2,400,000	2,400,000
Common stock, shares issued (in shares)	736,593	776,750
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares held in Treasury (in shares)	27,669	27,669