Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 02, 2020	Jul. 28, 2019	Aug. 02, 2020	Jul. 28, 2019
Income Statement [Abstract]
NET REVENUE	$ 185,941	$ 233,176	$ 610,982	$ 738,682
Cost of services	155,983	197,528	517,360	629,078
GROSS MARGIN	29,958	35,648	93,622	109,604
EXPENSES
Selling, administrative and other operating costs	31,245	38,395	106,931	117,144
Restructuring and severance costs	546	2,017	2,203	2,800
Impairment charges	2,384	79	2,395	426
Operating income (loss)	(4,217)	(4,843)	(17,907)	(10,766)
OTHER INCOME (EXPENSE), NET
Interest income (expense), net	(467)	(714)	(1,788)	(2,159)
Foreign exchange gain (loss), net	571	(151)	(23)	(252)
Other income (expense), net	(168)	(184)	(578)	(589)
TOTAL OTHER INCOME (EXPENSE), NET	(64)	(1,049)	(2,389)	(3,000)
LOSS BEFORE INCOME TAXES	(4,281)	(5,892)	(20,296)	(13,766)
Income tax provision	556	165	774	671
NET LOSS	$ (4,837)	$ (6,057)	$ (21,070)	$ (14,437)
Basic and Diluted:
Net loss (usd per share)	$ (0.22)	$ (0.29)	$ (0.98)	$ (0.68)
Weighted average number of shares (shares)	21,589	21,157	21,474	21,106