Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Income Statement [Abstract]
Other Nonoperating Income (Expense)	$ 0	$ 0	$ 0	$ 325
Net sales	199,475	169,685	612,320	505,603
Cost of goods sold	135,472	116,920	414,700	345,851
Gross profit	64,003	52,765	197,620	159,752
Selling, general and administrative expenses	55,372	45,768	162,523	134,177
Operating income	8,631	6,997	35,097	25,575
Interest income (expense), net	64	23	211	12
Income before income taxes	8,695	7,020	35,308	25,262
Income tax expense	3,248	2,683	13,256	9,586
Net income	$ 5,447	$ 4,337	$ 22,052	$ 15,676
Basic (loss) income per common share (dollars per share)	$ 0.10	$ 0.08	$ 0.40	$ 0.29
Diluted (loss) income per common share (dollars per share)	$ 0.10	$ 0.08	$ 0.40	$ 0.29
Weighted average shares outstanding:
Basic shares	54,871,172	54,529,403	54,809,768	54,525,797
Diluted shares	55,170,686	54,833,252	55,100,534	54,811,978