RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands		3 Months Ended										12 Months Ended
	Jan. 20, 2018	Oct. 31, 2018	Jul. 29, 2018	Apr. 29, 2018	[1]	Jan. 28, 2018	Oct. 29, 2017	Jul. 30, 2017	Apr. 30, 2017	[1]	Jan. 29, 2017	Oct. 31, 2018		Oct. 29, 2017		Oct. 30, 2016
Related Party Agreement [Abstract]
Revenue		$ 144,660	$ 136,391	$ 130,779		$ 123,446	$ 120,971	$ 111,579	$ 108,297		$ 109,831	$ 535,276	[1]	$ 450,678	[1]	$ 483,456
Accounts receivable		120,515					105,320					120,515		105,320
Customer One [Member]
Related Party Agreement [Abstract]
Revenue												78,400		73,600		80,500
Accounts receivable		$ 23,500					24,300					23,500		24,300
Information Technology Services Provider One [Member]
Related Party Agreement [Abstract]
Expenses incurred for goods or services provided by related party during the period														200		200
Information Technology Services Provider Two [Member]
Related Party Agreement [Abstract]
Expenses incurred for goods or services provided by related party during the period												100		500		300
Amount due currently to related party at end of period							$ 100							100
Photomask Blank Supplier [Member]
Related Party Agreement [Abstract]
Expenses incurred for goods or services provided by related party during the period														$ 4,500		$ 16,300
DEMA Associates, LLC [Member]
Related Party Agreement [Abstract]
Consulting agreement period	4 years
Annual cost of consulting contract	$ 400
Expenses incurred for goods or services provided by related party during the period												$ 300

[1] Includes $0.6 million gain on sale of assets.