Earnings per Share, Basic and Diluted - Computation of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014
Earnings Per Share [Abstract]
Net income	$ 3,213	$ 7,456	$ 5,983	$ 9,952
Weighted average common shares for basic earnings per share	28,311	28,776	28,726	28,819
Dilutive effect of stock options and restricted stock	128	281	206	363
Weighted average common shares for diluted earnings per share	28,439	29,057	28,932	29,182
Basic earnings per share	$ 0.11	$ 0.26	$ 0.21	$ 0.35
Diluted earnings per share	$ 0.11	$ 0.26	$ 0.21	$ 0.34