CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY INVESTMENT (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance-beginning of period at Jan. 30, 2010	$ 175,079	$ 364	$ 98,107	$ 243,552	$ (166,944)
Balance-beginning of period (in shares) at Jan. 30, 2010		36,436,503			7,761,813
Consolidated Statements of Stockholders' Investment [Roll Forward]
Net income	46,400	0	0	46,400	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit	12,763	7	12,756	0	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit (in shares)		694,143
Tax shortfall on release of restricted stock and option exercises	(67)	0	(67)	0	0
Adjustment to income tax benefit from exercises of employee stock options	(1,024)	0	(1,024)	0	0
Purchase of shares under the stock repurchase program	(37,859)	0	0	0	(37,859)
Purchase of shares under the stock repurchase program (in shares)					1,461,225
Stock-based compensation	4,796	0	4,796	0	0
Balance-end of period at Jan. 29, 2011	200,088	371	114,568	289,952	(204,803)
Balance-end of period (in shares) at Jan. 29, 2011		37,130,646			9,223,038
Consolidated Statements of Stockholders' Investment [Roll Forward]
Net income	59,060	0	0	59,060	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit	6,999	4	6,995	0	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit (in shares)		367,482
Tax shortfall on release of restricted stock and option exercises	(51)	0	(51)	0	0
Adjustment to income tax benefit from exercises of employee stock options	814	0	814	0	0
Purchase of shares under the stock repurchase program	(68,613)	0	0	0	(68,613)
Purchase of shares under the stock repurchase program (in shares)					1,897,002
Stock-based compensation	5,453	0	5,453	0	0
Balance-end of period at Jan. 28, 2012	203,750	375	127,779	349,012	(273,416)
Balance-end of period (in shares) at Jan. 28, 2012	37,498,128	37,498,128			11,120,040
Consolidated Statements of Stockholders' Investment [Roll Forward]
Net income	72,582	0	0	72,582	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit	7,000	3	6,997	0	0
Issuance of shares from the employee stock purchase plan and the exercise of stock options, including tax benefit (in shares)		348,193
Adjustment to income tax benefit from exercises of employee stock options	(2)	0	(2)	0	0
Purchase of shares under the stock repurchase program	(49,852)	0	0	0	(49,852)
Purchase of shares under the stock repurchase program (in shares)					903,794
Stock-based compensation	5,649	0	5,649	0	0
Balance-end of period at Feb. 02, 2013	$ 239,127	$ 378	$ 140,423	$ 421,594	$ (323,268)
Balance-end of period (in shares) at Feb. 02, 2013	37,846,321	37,846,321			12,023,834