Parenthetical Data to the Unaudited Condensed Consolidated Balance Sheets (USD $)	Apr. 30, 2011	Jan. 29, 2011
Stockholders' Investment:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	37,288,580	37,130,646
Treasury stock, shares	9,955,585	9,223,038