Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 01, 2020	Aug. 02, 2020	May 03, 2020	Feb. 02, 2020	Nov. 03, 2019	Jul. 28, 2019	Apr. 28, 2019	Jan. 27, 2019	Nov. 01, 2020	Nov. 03, 2019
Income Statement [Abstract]
NET REVENUE	$ 211,073	$ 185,941	$ 207,275	$ 217,766	$ 258,408	$ 233,176	$ 252,070	$ 253,436	$ 822,055	$ 997,090
Cost of services	176,844	155,983	175,038	186,339	215,449	197,528	215,813	215,737	694,204	844,527
GROSS MARGIN	34,229	29,958	32,237	31,427	42,959	35,648	36,257	37,699	127,851	152,563
Selling, administrative and other operating costs	30,735	31,245	36,189	39,497	39,908	38,395	38,939	39,810	137,666	157,052
Restructuring and severance costs	438	546	411	1,246	1,856	2,017	724	59	2,641	4,656
Impairment charges	14,518	2,384	0	11	262	79	347	0	16,913	688
Operating income (loss)	(11,462)	(4,217)	(4,363)	(9,327)	933	(4,843)	(3,753)	(2,170)	(29,369)	(9,833)
OTHER INCOME (EXPENSE), NET
Interest income	8	9	31	30	66	87	66	55	78	274
Interest expense	(439)	(476)	(652)	(730)	(789)	(801)	(765)	(801)	(2,297)	(3,156)
Foreign exchange gain (loss), net	(62)	571	(266)	(328)	(360)	(151)	(314)	213	(85)	(612)
Other income (expense), net	(291)	(168)	(152)	(258)	(292)	(184)	(166)	(239)	(869)	(881)
TOTAL OTHER INCOME (EXPENSE), NET									(3,173)	(4,375)
LOSS BEFORE INCOME TAXES	(12,246)	(4,281)	(5,402)	(10,613)	(442)	(5,892)	(4,932)	(2,942)	(32,542)	(14,208)
Income tax provision	271	556	23	195	307	165	233	273	1,045	978
NET LOSS	$ (12,517)	$ (4,837)	$ (5,425)	$ (10,808)	$ (749)	$ (6,057)	$ (5,165)	$ (3,215)	$ (33,587)	$ (15,186)
Basic:
Net loss (USD per share)	$ (0.58)	$ (0.22)	$ (0.25)	$ (0.50)	$ (0.04)	$ (0.29)	$ (0.24)	$ (0.15)	$ (1.56)	$ (0.72)
Weighted average number of shares (shares)	21,607	21,589	21,416	21,416	21,157	21,157	21,082	21,080	21,507	21,119
Diluted:
Net loss (USD per share)	$ (0.58)	$ (0.22)	$ (0.25)	$ (0.50)	$ (0.04)	$ (0.29)	$ (0.24)	$ (0.15)	$ (1.56)	$ (0.72)
Weighted average number of shares (shares)	21,607	21,589	21,416	21,416	21,157	21,157	21,082	21,080	21,507	21,119