Related Party Transactions (Details) (USD $)	12 Months Ended		3 Months Ended		0 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended	0 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Oct. 29, 2011 Common Stock	Jul. 30, 2011 Common Stock	Aug. 26, 2010 Henry Stupp Employment Agreement	Jul. 28, 2011 Henry Stupp Employment Agreement	Jan. 28, 2011 Robert Margolis Separation Agreement	Apr. 30, 2011 Robert Margolis Separation Agreement	Jan. 28, 2011 Robert Margolis Separation Agreement Maximum	Jan. 28, 2011 Robert Margolis and affiliates Separation Agreement Common Stock
Related party transactions
Number of shares of common stock purchased					81,967	12,562
Share price of common stock purchased (in dollars per share)					$ 18.30	$ 15.92
Issuance of common stock	$ 200,000				$ 1,500,000	$ 200,000
Number of shares repurchased										400,000
Per share price of shares repurchased			$ 13.85	$ 16.47						$ 18.15
Value of shares repurchased (in dollars)	1,885,000	7,260,000								7,300,000
Lump sum severance payment							2,300,000
Amount of final annual performance bonus paid to related party								$ 1,800,000
Vesting on outstanding option to purchase shares of Common Stock accelerated (in shares)									100,000