Segment Data - Summary of Sales and Segment Operating Income (Loss) by Reportable Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Apr. 28, 2019	Jan. 27, 2019	Apr. 29, 2018	Jan. 28, 2018	Apr. 28, 2019	Apr. 29, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	$ 252,070		$ 263,219		$ 505,506	$ 516,557
Cost of services	215,813		225,918		431,550	443,247
GROSS MARGIN	36,257		37,301		73,956	73,310
Selling, administrative and other operating costs	38,939		42,916		78,749	89,854
Restructuring and severance costs	724		104		783	622
Impairment charge	347		155		347	155
Operating income (loss)	(3,753)		(5,874)		(5,923)	(17,321)
Other income (expense), net	(1,179)		(1,183)		(1,951)	(1,790)
Income tax provision (benefit)	233		630		506	(730)
NET LOSS	(5,165)	$ (3,215)	(7,687)	$ (10,694)	(8,380)	(18,381)
Operating Segments | North American Staffing
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	208,871		218,090		420,719	424,325
Cost of services	179,678		187,929		361,363	366,287
GROSS MARGIN	29,193		30,161		59,356	58,038
Selling, administrative and other operating costs	26,439		28,586		52,717	57,084
Restructuring and severance costs	210		4		208	9
Impairment charge	0		0		0	0
Operating income (loss)	2,544		1,571		6,431	945
Operating Segments | International Staffing
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	28,809		31,904		55,075	61,483
Cost of services	24,095		27,100		46,233	52,177
GROSS MARGIN	4,714		4,804		8,842	9,306
Selling, administrative and other operating costs	3,894		3,915		7,636	8,287
Restructuring and severance costs	192		71		274	299
Impairment charge	0		0		0	0
Operating income (loss)	628		818		932	720
Operating Segments | North American MSP
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	9,579		6,339		17,796	14,819
Cost of services	7,186		4,498		13,104	11,259
GROSS MARGIN	2,393		1,841		4,692	3,560
Selling, administrative and other operating costs	1,252		1,397		2,559	2,799
Restructuring and severance costs	41		27		68	79
Impairment charge	0		0		0	0
Operating income (loss)	1,100		417		2,065	682
Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	5,431		7,817		13,277	18,064
Cost of services	5,474		7,322		12,211	15,658
GROSS MARGIN	(43)		495		1,066	2,406
Selling, administrative and other operating costs	7,354		9,018		15,837	21,684
Restructuring and severance costs	281		2		233	235
Impairment charge	347		155		347	155
Operating income (loss)	(8,025)		(8,680)		(15,351)	(19,668)
Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
NET REVENUE	(620)		(931)		(1,361)	(2,134)
Cost of services	(620)		(931)		(1,361)	(2,134)
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
Operating income (loss)	$ 0		$ 0		$ 0	$ 0