REVENUE, Contract Assets, Liabilities and Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2021	Feb. 02, 2020	Oct. 31, 2020
Contract with Customer, Asset and Liability [Abstract]
Contract assets	$ 6,800		$ 6,300
Contract liabilities current	7,500		8,000
Contract liabilities non-current	5,300		$ 5,200
Impairment loss on contract assets	0	$ 0
Change in Contract with Customer, Liability [Abstract]
Revenue from settlement of contract liabilities	$ 2,500	$ 1,200
Minimum [Member]
Revenue, Performance Obligation [Abstract]
Product invoice term	30 days
Product warranty period	1 month
Maximum [Member]
Revenue, Performance Obligation [Abstract]
Product invoice term	90 days
Product warranty period	24 months
IC [Member] | Minimum [Member]
Backlog of Orders [Abstract]
Customer order, expected satisfaction period	7 days
IC [Member] | Maximum [Member]
Backlog of Orders [Abstract]
Customer order, expected satisfaction period	14 days
FPD [Member] | Minimum [Member]
Backlog of Orders [Abstract]
Customer order, expected satisfaction period	14 days
FPD [Member] | Maximum [Member]
Backlog of Orders [Abstract]
Customer order, expected satisfaction period	21 days