Note 7 - Loss Per Share - Basic and Diluted Earnings Per Share (Details) - shares	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Basic (in shares)	10,222,540	10,067,186
Add effects of potentially dilutive securities-assumed exercise of stock options (in shares)	0	0
Diluted (in shares)	10,222,540	10,067,186