REVENUE, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 28, 2019	Jul. 29, 2018	Jul. 28, 2019	Jul. 29, 2018
Disaggregation of Revenue [Abstract]
Revenue	$ 138,112	$ 136,391	$ 394,404	$ 390,616
Over Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	122,938		362,078
At a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Revenue	15,174		32,326
Taiwan [Member]
Disaggregation of Revenue [Abstract]
Revenue	61,273		175,482
Korea [Member]
Disaggregation of Revenue [Abstract]
Revenue	37,120		110,395
United States [Member]
Disaggregation of Revenue [Abstract]
Revenue	25,364		74,579
Europe [Member]
Disaggregation of Revenue [Abstract]
Revenue	7,937		24,725
China [Member]
Disaggregation of Revenue [Abstract]
Revenue	5,963		7,693
Other [Member]
Disaggregation of Revenue [Abstract]
Revenue	455		1,530
IC [Member]
Disaggregation of Revenue [Abstract]
Revenue	100,185		293,652
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	38,460		111,455
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	61,725		182,197
FPD [Member]
Disaggregation of Revenue [Abstract]
Revenue	37,927		100,752
High-end [Member]
Disaggregation of Revenue [Abstract]
Revenue	25,939		70,361
Mainstream [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 11,988		$ 30,391