Note 14 - Preferred Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jul. 12, 2005	Jan. 31, 2022	Jan. 31, 2021	Oct. 31, 2021
Preferred Stock, Shares Issued, Total (in shares)		5,600		5,600
Payments of Dividends, Total		$ 2,669	$ (0)
Preferred Class A [Member]
Preferred Stock, Shares Issued, Total (in shares)	5,600
Preferred Stock, Dividend Rate, Percentage	7.625%
Preferred Stock, Liquidation Preference Per Share (in dollars per share)	$ 25,000
Preferred Stock, Depositary Shares, Number of Shares of Preferred Stock in Each Depositary Share (in shares)	0.001
Payments of Dividends, Total		$ 2,700	$ 0