Condensed Consolidated Statements of Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Income Statement [Abstract]
Net sales	$ 218,971	$ 192,245	$ 425,257	$ 373,399
Cost of goods sold	146,436	132,449	290,136	261,555
Gross profit	72,535	59,796	135,121	111,844
Selling, general and administrative expenses	65,837	60,558	130,133	118,841
Operating profit (loss)	6,698	(762)	4,988	(6,997)
Interest income, net	238	92	521	174
Other income (expense), net	248	(23)	(233)	(472)
Earnings (loss) before income taxes	7,184	(693)	5,276	(7,295)
Provision (benefit) for income taxes	2,807	(85)	3,506	(2,239)
Net income (loss)	$ 4,377	$ (608)	$ 1,770	$ (5,056)
Basic earnings (loss) per share	$ 0.18	$ (0.02)	$ 0.07	$ (0.21)
Diluted earnings (loss) per share	$ 0.17	$ (0.02)	$ 0.07	$ (0.21)
Weighted average shares used in computation of earnings (loss) per share:
Basic	24,955	24,689	24,894	24,635
Diluted	25,188	24,689	25,211	24,635