JOINT VENTURE, TECHNOLOGY LICENSE AND OTHER AGREEMENTS WITH MICRON TECHNOLOGY, INC. (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2016	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017	Jul. 31, 2016
Variable Interest Entity [Line Items]
Variable interest entity, methodology for determining whether entity is primary beneficiary				This joint venture was a variable interest entity ("VIE") (as that term is defined in ASC 810) because all costs of the joint venture were passed on to the Company and Micron through purchase agreements they had entered into with the joint venture, and it was dependent upon the Company and Micron for any additional cash requirements. On a quarterly basis the Company reassessed whether its interest in MP Mask gave it a controlling financial interest in this VIE. The purpose of this quarterly reassessment was to identify the primary beneficiary (which is defined in ASC 810 as the entity that consolidates a VIE) of the VIE. As a result of the reassessments in fiscal year 2016, the Company determined that Micron remained the primary beneficiary of the VIE, by virtue of its tie-breaking voting rights within MP Mask’s Board of Managers, thereby having given it the power to direct the activities of MP Mask that most significantly impacted its economic performance, including its decision making authority in the ordinary course of business and its purchasing the majority of products produced by the VIE.
Cost of sales		$ 89,862	$ 91,759	$ 264,835	$ 277,915
Research and development expenses		$ 4,812	5,466	$ 12,023	16,613
MP Mask [Member]
Variable Interest Entity [Line Items]
Proceeds from sale of equity method investment	$ 93,100
Gain on sale of equity method investment	$ 100
Cost of sales			$ 800		5,700
Research and development expenses					500
Loss from variable interest entity					$ 100