Unaudited Quarterly Results of Operations (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
Statement of Income Data:
Net sales	$ 211,013	$ 183,050	$ 182,830	$ 205,032	$ 201,158	$ 175,364	$ 181,999	$ 211,032	$ 781,925	$ 769,553	$ 755,241
Cost of sales (exclusive of depreciation shown separately below)	(127,311)	(114,579)	(114,612)	(128,238)	(126,095)	(110,420)	(110,398)	(129,413)	(484,740)	(476,326)	(466,022)
Selling, general and administrative expenses	(67,654)	(65,539)	(62,989)	(63,447)	(61,459)	(61,189)	(62,285)	(63,005)	(259,629)	(247,938)	(247,062)
Depreciation	(4,794)	(4,520)	(4,607)	(4,614)	(4,636)	(4,600)	(4,676)	(4,974)	(18,535)	(18,886)	(18,883)
Asset impairment			(472)		(152)	(180)	(942)		(472)	(1,274)	(507)
Income from operations	11,254	(1,588)	150	8,733	8,816	(1,025)	3,698	13,640	18,549	25,129	22,767
Interest, net	322	382	374	341	334	282	325	258
Income before income taxes	11,576	(1,206)	524	9,074	9,150	(743)	4,023	13,898	19,968	26,328	23,500
Income tax expense	(2,154)	122	(147)	(1,286)	(1,802)	237	(788)	(2,601)	(3,465)	(4,954)	(8,926)
Net income	$ 9,422	$ (1,084)	$ 377	$ 7,788	$ 7,348	$ (506)	$ 3,235	$ 11,297	$ 16,503	$ 21,374	$ 14,574
Net income (loss) per common share: (1)
Basic (in dollars per share)	$ 0.84	$ (0.09)	$ 0.03	$ 0.65	$ 0.59	$ (0.04)	$ 0.24	$ 0.83	$ 1.41	$ 1.64	$ 1.04
Diluted (in dollars per share)	$ 0.84	$ (0.09)	$ 0.03	$ 0.65	$ 0.59	$ (0.04)	$ 0.24	$ 0.83	$ 1.41	$ 1.64	$ 1.03
Weighted average shares used to compute net income (loss) per common share:
Basic	11,201,804	11,635,707	11,881,896	11,976,142	12,447,209	12,780,472	13,314,470	13,578,100	11,673,887	13,030,063	14,058,008
Diluted	11,270,762	11,635,707	11,881,896	12,006,306	12,470,560	12,780,472	13,351,321	13,631,266	11,699,000	13,069,694	14,115,895