Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Product sales	$ 43,047	$ 62,563	$ 128,595
Service agreements and license revenues	27,050	31,491	21,012
Advanced Technologies contract revenues	18,336	12,931	13,470
Related Party [Member]
Product sales	400	43,600	100,500
Service agreements and license revenues	5,400	8,500	11,400
Advanced Technologies contract revenues	$ 0	$ 0	$ 600