Fair Value Level 3 Inputs - (Details) (Discounted Cash Flow Analysis, Level 3)	3 Months Ended
	May 03, 2014	May 04, 2013
Fair Value Inputs Assets Quantitative Information [Line Items]
Total Term		9 years 4 months 24 days
Auction Rate Securities (ARS)
Fair Value Inputs Assets Quantitative Information [Line Items]
Total Term	9 years 4 months 24 days	10 years 4 months 24 days
Comparitive Bond Discount Rate	0.14%	0.14%
ARS Yield	0.18%	0.28%