Note 2 - Stock Compensation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Share-Based Payment Arrangement, Expense	$ 3,000	$ 3,600	$ 6,400	$ 5,300
Share-Based Payment Arrangement, Expense, after Tax	2,200	2,700	4,800	4,100
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense	$ 30	$ 100	$ 100	$ 200