Segment Disclosures - Summary of Capital Expenditures and Depreciation and Amortization by Operating Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011	Oct. 28, 2012	Oct. 30, 2011	Oct. 31, 2010
Capital expenditures:
Capital expenditures									$ 13,702	$ 17,917	$ 13,244
Depreciation and amortization:
Depreciation and amortization	4,062	4,022	4,075	4,354	4,757	4,756	5,004	5,218	16,513	19,735	23,693
Operating Segments [Member]
Capital expenditures:
Capital expenditures									11,613	14,904	12,631
Depreciation and amortization:
Depreciation and amortization									15,138	17,443	21,953
Operating Segments [Member] | Staffing Services [Member]
Capital expenditures:
Capital expenditures									9,554	12,666	9,261
Depreciation and amortization:
Depreciation and amortization									8,588	8,371	9,321
Operating Segments [Member] | Computer Systems [Member]
Capital expenditures:
Capital expenditures									1,872	1,914	2,395
Depreciation and amortization:
Depreciation and amortization									4,680	7,002	9,831
Operating Segments [Member] | Other [Member]
Capital expenditures:
Capital expenditures									187	324	975
Depreciation and amortization:
Depreciation and amortization									1,870	2,070	2,801
Corporate, Non-Segment [Member]
Capital expenditures:
Capital expenditures									2,089	3,013	613
Depreciation and amortization:
Depreciation and amortization									$ 1,375	$ 2,292	$ 1,740