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, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Loans Held for Sale [Member]
Fair value included in net loss all reflected in financial services revenues	$ 127	$ 645	$ 2,541	$ 3,214
Interest Rate Lock Commitments [Member]
Fair value included in net loss all reflected in financial services revenues	178	109	(70)	99
Forward Contracts [Member]
Fair value included in net loss all reflected in financial services revenues	$ (143)	$ (422)	$ 125	$ (305)