Note 20 - Fair Value of Financial Instruments - Changes in Fair Values Included in Income (Loss) (Details) - Financial Services Revenue Line Item [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Loans Held for Sale [Member]
Fair value included in net income (loss) all reflected in financial services revenues	$ (636)	$ (709)	$ 4,257	$ 2,153
Interest Rate Lock Commitments [Member]
Fair value included in net income (loss) all reflected in financial services revenues	385	224	439	342
Forward Contracts [Member]
Fair value included in net income (loss) all reflected in financial services revenues	$ (252)	$ (271)	$ (403)	$ (454)