Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012	Jul. 30, 2011
Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000	10,000	10,000
Preferred stock, shares issued	0	0	0
Preferred stock, shares outstanding	0	0	0
Common stock, par value	$ 0.001	$ 0.001	$ 0.001
Common stock, shares authorized	200,000	200,000	200,000
Common stock, shares issued	24,570	24,476	24,459
Common stock, shares outstanding	24,063	24,476	24,459
Treasury stock	507	0	0