Segment Data - Summary of Sales and Segment Operating Income (Loss) by Reportable Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	May 03, 2020	Feb. 02, 2020	Apr. 28, 2019	Jan. 27, 2019	May 03, 2020	May 03, 2020	Apr. 28, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	$ 207,275		$ 252,070			$ 425,041	$ 505,506
Cost of services	175,038		215,813			361,377	431,550
GROSS MARGIN	32,237		36,257			63,664	73,956
Selling, administrative and other operating costs	36,189		38,939			75,686	78,749
Restructuring and severance costs	411		724		$ 1,657	1,657	783
Impairment charge	0		347			11	347
Operating income (loss)	(4,363)		(3,753)			(13,690)	(5,923)
Other income (expense), net	(1,039)		(1,179)			(2,325)	(1,951)
Income tax provision	23		233			218	506
NET LOSS	(5,425)	$ (10,808)	(5,165)	$ (3,215)		(16,233)	(8,380)
Operating Segments | North American Staffing
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	173,386		208,871			355,781	420,719
Cost of services	147,423		179,678			304,817	361,363
GROSS MARGIN	25,963		29,193			50,964	59,356
Selling, administrative and other operating costs	23,043		26,439			47,852	52,717
Restructuring and severance costs	344		210			426	208
Impairment charge			0			11	0
Operating income (loss)	2,576		2,544			2,675	6,431
Operating Segments | International Staffing
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	24,303		28,809			50,526	55,075
Cost of services	20,282		24,095			42,312	46,233
GROSS MARGIN	4,021		4,714			8,214	8,842
Selling, administrative and other operating costs	3,714		3,894			7,533	7,636
Restructuring and severance costs	111		192			111	274
Impairment charge			0			0	0
Operating income (loss)	196		628			570	932
Operating Segments | North American MSP
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	9,745		9,579			19,114	17,796
Cost of services	7,582		7,186			14,837	13,104
GROSS MARGIN	2,163		2,393			4,277	4,692
Selling, administrative and other operating costs	1,672		1,252			3,032	2,559
Restructuring and severance costs	0		41			0	68
Impairment charge			0			0	0
Operating income (loss)	491		1,100			1,245	2,065
Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	187		5,431			390	13,277
Cost of services	97		5,474			181	12,211
GROSS MARGIN	90		(43)			209	1,066
Selling, administrative and other operating costs	7,760		7,354			17,269	15,837
Restructuring and severance costs	(44)		281			1,120	233
Impairment charge			347			0	347
Operating income (loss)	(7,626)		(8,025)			(18,180)	(15,351)
Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	(346)		(620)			(770)	(1,361)
Cost of services	(346)		(620)			(770)	(1,361)
GROSS MARGIN	0		0			0	0
Selling, administrative and other operating costs	0		0			0	0
Restructuring and severance costs	0		0			0	0
Impairment charge			0			0	0
Operating income (loss)	$ 0		$ 0			$ 0	$ 0