REVENUE, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 02, 2020	Jan. 27, 2019
Disaggregation of Revenue [Abstract]
Revenue	$ 159,736	$ 124,712
Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	137,696	120,845
At a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	22,040	3,867
Taiwan [Member]
Disaggregation of Revenue [Abstract]
Revenue	66,114	57,740
Korea [Member]
Disaggregation of Revenue [Abstract]
Revenue	40,736	35,237
United States [Member]
Disaggregation of Revenue [Abstract]
Revenue	25,067	22,472
Europe [Member]
Disaggregation of Revenue [Abstract]
Revenue	7,543	8,354
China [Member]
Disaggregation of Revenue [Abstract]
Revenue	19,900	263
All Other Asia [Member]
Disaggregation of Revenue [Abstract]
Revenue	376	646
IC [Member]
Disaggregation of Revenue [Abstract]
Revenue	106,978	94,880
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	41,041	34,566
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	65,937	60,314
FPD [Member]
Disaggregation of Revenue [Abstract]
Revenue	52,758	29,832
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	39,770	15,350
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 12,988	$ 14,482