Stockholders Equity (Details) (USD $)	0 Months Ended	12 Months Ended	1 Months Ended		12 Months Ended	17 Months Ended
	Feb. 01, 2013	Feb. 02, 2013	Aug. 31, 2012 Common Stock Class A [Member]	Aug. 31, 2011 Common Stock Class A [Member]	Jan. 28, 2012 Common Stock Class A [Member]	Jan. 28, 2012 Common Stock Class A [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount	$ 25,000,000.0
Stock repurchase program, percent of total market capitalization		10.00%
Stock repurchased during the period (in shares)					12,093,482	12,975,782
Stock repurchased average cost per share					$ 4.43
Stock repurchased during the period, value					53,700,000	56,700,000
Shares paid to satisfy employee withholding tax obligations		208,548
Payments related to tax withholding for share-based compensation		600,000
Treasury stock retired (in shares)			1,245,680	24,242,219
Shares repurchased (in shares)		141,301
Shares repurchased amount		$ 400,000
Forfeitures of stock-based compensation (in shares)		669,467