Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 29, 2017	Oct. 30, 2016	Nov. 01, 2015
Income Statement [Abstract]
NET REVENUE	$ 1,194,436	$ 1,334,747	$ 1,496,897
Cost of services	1,007,041	1,132,253	1,268,363
GROSS MARGIN	187,395	202,494	228,534
EXPENSES
Selling, administrative and other operating costs	197,130	203,930	231,033
Restructuring and severance costs	1,379	5,752	3,635
Gain from divestitures	(51,971)	(1,663)	0
Settlement and impairment charges	1,694	364	6,626
TOTAL EXPENSES	148,232	208,383	241,294
OPERATING INCOME (LOSS)	39,163	(5,889)	(12,760)
OTHER INCOME (EXPENSE), NET
Interest income	39	146	572
Interest expense	(3,790)	(3,305)	(3,244)
Foreign exchange gain (loss), net	(1,637)	(1,803)	(249)
Other income (expense), net	(1,562)	(1,544)	541
TOTAL OTHER INCOME (EXPENSE), NET	(6,950)	(6,506)	(2,380)
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	32,213	(12,395)	(15,140)
Income tax provision	3,388	2,175	4,646
INCOME (LOSS) FROM CONTINUING OPERATIONS	28,825	(14,570)	(19,786)
DISCONTINUED OPERATIONS
Loss from discontinued operations, net of income taxes	(1,693)	0	(4,834)
NET INCOME (LOSS)	$ 27,132	$ (14,570)	$ (24,620)
Basic:
Income (loss) from continuing operations (USD per share)	$ 1.38	$ (0.70)	$ (0.95)
Loss from discontinued operations (USD per share)	(0.08)	0.00	(0.23)
Net Income (loss) (USD per share)	$ 1.30	$ (0.70)	$ (1.18)
Weighted average number of shares (shares)	20,942	20,831	20,816
Diluted:
Income (loss) from continuing operations (USD per share)	$ 1.37	$ (0.70)	$ (0.95)
Loss from discontinued operations (USD per share)	(0.08)	0.00	(0.23)
Net Income (loss) (USD per share)	$ 1.29	$ (0.70)	$ (1.18)
Weighted average number of shares (shares)	21,017	20,831	20,816