Note 13 - Cash Dividend and Declared Dividends (Details Textual) - USD ($)	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)	$ 0.02	$ 0.02
Payments of Ordinary Dividends, Common Stock	$ 388,000	$ 748,000