Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Income Statement [Abstract]
Net sales	$ 192,715	$ 153,727
Cost of goods sold	132,448	106,566
Gross profit	60,267	47,161
Selling, general and administrative expenses	49,515	40,140
Operating income	10,752	7,021
Interest income (expense), net	74	(9)
Income before income taxes	10,826	7,012
Income tax expense	4,068	2,734
Net income	$ 6,758	$ 4,278
Basic (loss) income per common share (dollars per share)	$ 0.12	$ 0.08
Diluted (loss) income per common share (dollars per share)	$ 0.12	$ 0.08
Weighted average shares outstanding:
Basic shares	54,681,646	54,448,634
Diluted shares	54,964,890	54,717,146