RESTRUCTURING AND ASSET IMPAIRMENTS - Restructuring Liability and Cash Payments (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Apr. 30, 2017 USD ($) payment	Oct. 30, 2016 USD ($)	Nov. 01, 2015 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 482	$ 1,685	$ 0
Costs incurred	2,373	2,890	5,462
Cash payments	(2,647)	(4,093)	(4,516)
Accrued severance			739
End balance	$ 208	482	1,685
Severance benefit payment, number of installments | payment	2
Amortization		700
General severance
Restructuring Reserve [Roll Forward]
Beginning balance	$ 482	1,685	0
Costs incurred	1,043	2,725	3,887
Cash payments	(1,317)	(3,928)	(2,941)
Accrued severance			739
End balance	208	482	1,685
Plant closing severance
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	0
Costs incurred	1,330	165	1,575
Cash payments	(1,330)	(165)	(1,575)
Accrued severance			0
End balance	$ 0	$ 0	$ 0