Note 19 - 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, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Loans Held for Sale [Member]
Fair value included in net loss all reflected in financial services revenues	$ 946	$ 127	$ 2,942	$ 2,541
Interest Rate Lock Commitments [Member]
Fair value included in net loss all reflected in financial services revenues	(208)	178	17	(70)
Forward Contracts [Member]
Fair value included in net loss all reflected in financial services revenues	$ 406	$ (143)	$ 21	$ 125