Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2021	Nov. 01, 2020
Income Statement [Abstract]
NET REVENUE	$ 885,393	$ 822,055
Cost of services	741,871	694,204
GROSS MARGIN	143,522	127,851
Selling, administrative and other operating costs	135,427	137,666
Restructuring and severance costs	2,839	2,641
Impairment charges	424	16,913
OPERATING INCOME (LOSS)	4,832	(29,369)
OTHER INCOME (EXPENSE), NET
Interest income	37	78
Interest expense	(1,805)	(2,297)
Foreign exchange gain (loss), net	318	(85)
Other income (expense), net	(605)	(869)
TOTAL OTHER INCOME (EXPENSE), NET	(2,055)	(3,173)
INCOME (LOSS) BEFORE INCOME TAXES	2,777	(32,542)
Income tax provision	1,403	1,045
NET INCOME (LOSS)	$ 1,374	$ (33,587)
Basic:
Net income (loss) (in USD per share)	$ 0.06	$ (1.56)
Weighted average number of shares, basic (in shares)	21,884	21,507
Diluted:
Net income (loss) (in USD per share)	$ 0.06	$ (1.56)
Weighted average number of shares, diluted (in shares)	22,609	21,507
Cost, Product and Service [Extensible Enumeration]	Service [Member]	Service [Member]