Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 224,614	$ 144,979	$ 131,683	$ 132,841	$ 203,160	$ 138,240	$ 123,017	$ 129,911	$ 634,117	$ 594,328	$ 561,807
Gross profit	79,131	45,471	40,086	42,848	74,195	45,680	37,563	45,054	207,536	202,492	202,501
Operating (loss) income	21,093	(3,767)	(5,696)	(2,278)	22,978	(1,608)	(5,895)	1,524	9,352	16,999	26,191
Net (loss) income	$ 12,865	$ (2,362)	$ (3,772)	$ (1,435)	$ 14,543	$ (846)	$ (3,567)	$ 916	$ 5,296	$ 11,046	$ 16,573
(Loss) earnings per share:
Basic (in dollars per share)	$ 0.80	$ (0.15)	$ (0.24)	$ (0.09)	$ 0.91	$ (0.05)	$ (0.22)	$ 0.06	$ 0.33	$ 0.70	$ 0.97
Diluted (in dollars per share)	$ 0.79	$ (0.15)	$ (0.24)	$ (0.09)	$ 0.90	$ (0.05)	$ (0.22)	$ 0.06	$ 0.33	$ 0.68	$ 0.94
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales									$ 426,581	$ 391,836	$ 359,306
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales	$ 5,400	$ 5,100	$ 4,900	$ 4,800	$ 5,000	$ 4,800	$ 4,700	$ 4,500		$ 19,000	$ 16,300