Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Millions	Jan. 31, 2022	Oct. 31, 2021
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	$ 140
Common Class A [Member]
Common stock, shares authorized (in shares)	16,000,000	16,000,000
Common stock, shares issued (in shares)	6,084,670	6,066,164
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares held in Treasury (in shares)	470,430	470,430
Common Class B [Member]
Common stock, shares authorized (in shares)	2,400,000	2,400,000
Common stock, shares issued (in shares)	704,273	686,876
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares held in Treasury (in shares)	27,669	27,669