REVENUE, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 03, 2020	Apr. 28, 2019	May 03, 2020	Apr. 28, 2019
Disaggregation of Revenue [Abstract]
Revenue	$ 142,774	$ 131,580	$ 302,510	$ 256,291
Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	126,071	123,853	263,905	244,699
At a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	16,703	7,727	38,605	11,592
Taiwan [Member]
Disaggregation of Revenue [Abstract]
Revenue	55,513	56,469	121,626	114,209
Korea [Member]
Disaggregation of Revenue [Abstract]
Revenue	36,261	38,038	76,997	73,275
United States [Member]
Disaggregation of Revenue [Abstract]
Revenue	24,857	26,742	49,925	49,215
China [Member]
Disaggregation of Revenue [Abstract]
Revenue	17,486	1,467	37,386	1,730
Europe [Member]
Disaggregation of Revenue [Abstract]
Revenue	8,331	8,435	15,874	16,788
Other [Member]
Disaggregation of Revenue [Abstract]
Revenue	326	429	702	1,074
IC [Member]
Disaggregation of Revenue [Abstract]
Revenue	96,846	98,587	203,824	193,466
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	38,267	38,429	79,308	72,995
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	58,579	60,158	124,516	120,471
FPD [Member]
Disaggregation of Revenue [Abstract]
Revenue	45,928	32,993	98,686	62,825
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	31,809	22,051	71,579	37,401
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 14,119	$ 10,942	$ 27,107	$ 25,424