Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Revenues	$ 89,437	$ 95,666	$ 108,252
Product Sales [Member]
Revenues	52,490	43,047	62,563
Service Agreements and License Revenues [Member]
Revenues	15,757	27,050	31,491
Related Party [Member] | Product Sales [Member]
Revenues	11,400	400	43,600
Related Party [Member] | Service Agreements and License Revenues [Member]
Revenues	$ 6,500	$ 5,400	$ 8,500