Note 19 - Fair Value of Financial Instruments - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Total Losses	$ 0	$ (3,200)	$ (2,100)	$ (7,400)
Sold and Unsold Homes and Lots Under Development [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Pre-Impairment Amount			11,170	14,776
Total Losses			(2,117)	(4,136)
Fair Value of Inventory			9,053	10,640
Land and Land Options Held for Future Development or Sale [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Pre-Impairment Amount		15,852		22,178
Total Losses		(3,215)		(3,296)
Fair Value of Inventory		$ 12,637		$ 18,882