Quarterly Financial Information (unaudited) - Selected Consolidated Statements of Operations Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 30, 2016	Jul. 31, 2016	May 01, 2016	Jan. 31, 2016	Nov. 01, 2015	Aug. 02, 2015	May 03, 2015	Feb. 01, 2015	Oct. 30, 2016	Nov. 01, 2015	Nov. 02, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Revenues	$ 341,578	$ 330,625	$ 335,576	$ 326,968	$ 363,974	$ 364,668	$ 385,189	$ 383,066	$ 1,334,747	$ 1,496,897	$ 1,710,028
REVENUE:
Cost of services	284,651	282,098	284,104	281,400	305,800	307,866	324,673	330,024	1,132,253	1,268,363	1,450,448
Gross Profit	56,927	48,527	51,472	45,568	58,174	56,802	60,516	53,042	202,494	228,534	259,580
EXPENSES
Selling, administrative and other operating costs	50,636	49,543	51,128	52,623	55,250	57,409	58,985	59,389	203,930	231,033	249,026
Restructuring and severance costs	1,181	970	840	2,761	542	1,867	251	975	5,752	3,635	2,507
Impairment charges	364	0	0	0	672	580	5,374	0	364	6,626	0
Gain on sale of building	0	0	(1,663)	0					(1,663)	0	0
TOTAL EXPENSES	52,181	50,513	50,305	55,384	56,464	59,856	64,610	60,364	208,383	241,294	254,794
OPERATING INCOME (LOSS)	4,746	(1,986)	1,167	(9,816)	1,710	(3,054)	(4,094)	(7,322)	(5,889)	(12,760)	4,786
OTHER INCOME (EXPENSE):
Interest income	17	18	37	74	74	175	261	62	146	572	267
Interest expense	(830)	(844)	(899)	(732)	(811)	(746)	(991)	(696)	(3,305)	(3,244)	(3,530)
Foreign exchange gain (loss), net	(565)	(1,003)	(579)	344	(96)	1,010	(1,600)	437	(1,803)	(249)	118
Other income (expense), net	(443)	(402)	(420)	(279)	578	(178)	43	98	(1,544)	541	198
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	2,925	(4,217)	(694)	(10,409)	1,455	(2,793)	(6,381)	(7,421)	(12,395)	(15,140)	1,839
Income tax provision	138	393	1,091	553	1,384	1,351	532	1,379	2,175	4,646	5,226
LOSS FROM CONTINUING OPERATIONS	2,787	(4,610)	(1,785)	(10,962)	71	(4,144)	(6,913)	(8,800)	(14,570)	(19,786)	(3,387)
Loss from discontinued operations, net of income taxes	0	0	0	0	(315)	0	0	(4,519)	0	(4,834)	(15,601)
NET LOSS	$ 2,787	$ (4,610)	$ (1,785)	$ (10,962)	$ (244)	$ (4,144)	$ (6,913)	$ (13,319)	$ (14,570)	$ (24,620)	$ (18,988)
Basic:
Loss from continuing operations, basic (USD per share)	$ 0.13	$ (0.22)	$ (0.09)	$ (0.53)	$ 0.00	$ (0.20)	$ (0.33)	$ (0.42)	$ (0.70)	$ (0.95)	$ (0.16)
Loss from discontinued operations (USD per share)	0.00	0.00	0.00	0.00	(0.01)	0.00	0.00	(0.22)	0.00	(0.23)	(0.75)
Net loss (USD per share)	$ 0.13	$ (0.22)	$ (0.09)	$ (0.53)	$ (0.01)	$ (0.20)	$ (0.33)	$ (0.64)	$ (0.70)	$ (1.18)	$ (0.91)
Weighted average number of shares (shares)	20,852	20,846	20,814	20,813	20,799	20,741	20,793	20,930	20,831	20,816	20,863
Diluted:
Loss from continuing operations, diluted (USD per share)	$ 0.13	$ (0.22)	$ (0.09)	$ (0.53)	$ 0.00	$ (0.20)	$ (0.33)	$ (0.42)	$ (0.70)	$ (0.95)	$ (0.16)
Loss from discontinued operations (USD per share)	0.00	0.00	0.00	0.00	(0.01)	0.00	0.00	(0.22)	0.00	(0.23)	(0.75)
Net loss (USD per share)	$ 0.13	$ (0.22)	$ (0.09)	$ (0.53)	$ (0.01)	$ (0.20)	$ (0.33)	$ (0.64)	$ (0.70)	$ (1.18)	$ (0.91)
Weighted average number of shares (shares)	21,762	20,846	20,814	20,813	20,930	20,741	20,793	20,930	20,831	20,816	20,863