Earnings per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 03, 2013	Jul. 28, 2012	Aug. 03, 2013	Jul. 28, 2012
Basic EPS:
Net income	$ 9,607	$ 11,662	$ 2,751	$ 11,244
Less: Allocation of earnings to participating securities	(137)	(173)	(41)	(151)
Net income allocated to common shares	9,470	11,489	2,710	11,093
Basic weighted average shares outstanding	32,762	31,010	32,534	30,773
Basic EPS (in dollars per share)	$ 0.29	$ 0.37	$ 0.08	$ 0.36
Diluted EPS:
Net income	9,607	11,662	2,751	11,244
Less: Allocation of earnings to participating securities	(136)	(172)	(42)	(150)
Net income allocated to common shares	$ 9,471	$ 11,490	$ 2,709	$ 11,094
Basic weighted average shares outstanding (in shares)	32,762	31,010	32,534	30,773
Add: Dilutive effect of stock awards	311	215	374	215
Diluted weighted average shares outstanding (in shares)	33,073	31,225	32,908	30,988
Diluted EPS (in dollars per share)	$ 0.29	$ 0.37	$ 0.08	$ 0.36
Anti-dilutive due to exercise price [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of Earnings Per Share	115	1,341	93	1,472