Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 01, 2021	Aug. 02, 2020	Aug. 01, 2021	Aug. 02, 2020
Income Statement [Abstract]
NET REVENUE	$ 217,534	$ 185,941	$ 657,584	$ 610,982
Cost of services	181,334	155,983	552,223	517,360
GROSS MARGIN	36,200	29,958	105,361	93,622
EXPENSES
Selling, administrative and other operating costs	34,039	31,245	100,736	106,931
Restructuring and severance costs	489	546	1,716	2,203
Impairment charges	112	2,384	404	2,395
OPERATING INCOME (LOSS)	1,560	(4,217)	2,505	(17,907)
OTHER INCOME (EXPENSE), NET
Interest income (expense), net	(445)	(467)	(1,352)	(1,788)
Foreign exchange gain (loss), net	(34)	571	279	(23)
Other income (expense), net	(152)	(168)	(455)	(578)
TOTAL OTHER INCOME (EXPENSE), NET	(631)	(64)	(1,528)	(2,389)
INCOME (LOSS) BEFORE INCOME TAXES	929	(4,281)	977	(20,296)
Income tax provision	314	556	929	774
NET INCOME (LOSS)	$ 615	$ (4,837)	$ 48	$ (21,070)
Basic:
Net income (loss) (USD per share)	$ 0.03	$ (0.22)	$ 0	$ (0.98)
Weighted average number of shares (in shares)	21,968	21,589	21,851	21,474
Diluted:
Net income (loss) (USD per share)	$ 0.03	$ (0.22)	$ 0	$ (0.98)
Weighted average number of shares (in shares)	22,651	21,589	22,542	21,474