JOINT VENTURE, TECHNOLOGY LICENSE AND OTHER AGREEMENTS WITH MICRON TECHNOLOGY, INC. (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2016	Oct. 29, 2017	Oct. 30, 2016	Nov. 01, 2015
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 the ASC) 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 the ASC 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 purchase of the majority of products produced by the VIE.
Amortization of supply agreement		$ 4,900	$ 4,800	$ 6,000
Cost of goods sold		359,363	364,750	381,070
Research and development expenses		$ 15,862	21,654	21,920
Summarized financial information of MP Mask [Abstract]
Revenue			49,626	96,068
Gross profit			2,736	1,215
Net loss			0	(151)
MP Mask [Member]
Variable Interest Entity [Line Items]
Additional investment in joint venture			0
Distributions from joint venture			0
Income (loss) from equity-method investee			(100)	(100)
Commission revenue earned under supply agreement			400	800
Amortization of supply agreement			100	200
Cost of goods sold			5,700	4,800
Research and development expenses			$ 500	$ 3,100
Proceeds from sale of equity method investment	$ 93,100
Gain on sale of equity method investment	$ 100
Co-venturer [Member]
Variable Interest Entity [Line Items]
Supply agreement term subject to mutually agreeable renewals	1 year