Quarterly Financial Information (Unaudited) - Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 172,479	$ 154,780	$ 161,738	$ 130,303	$ 170,612	$ 146,826	$ 157,406	$ 123,634	$ 619,300	$ 598,478	$ 576,899
Gross profit	52,134	47,171	51,719	35,684	52,157	43,656	50,105	34,977	186,708	180,896	175,370
Operating income	8,495	7,704	12,110	146	10,934	6,737	12,478	1,331	28,455	31,480	23,986
Net income	$ 6,273	$ 6,388	$ 9,284	$ 677	$ 8,677	$ 5,355	$ 9,689	$ 1,223	$ 22,622	$ 24,943	$ 14,700
Basic earnings per share (in dollars per share)	$ 0.21	$ 0.22	$ 0.31	$ 0.02	$ 0.29	$ 0.18	$ 0.33	$ 0.04
Diluted earnings per share (in dollars per share)	$ 0.21	$ 0.21	$ 0.31	$ 0.02	$ 0.29	$ 0.18	$ 0.33	$ 0.04