Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 03, 2013 item	Jul. 28, 2012 item	Aug. 03, 2013 item	Jul. 28, 2012 item	Feb. 01, 2014 item	Feb. 02, 2013 item
Fiscal year
Number of weeks in a fiscal year	13	13	26	26	52	53