Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017	Feb. 03, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories, net	$ 248,135		$ 248,135		$ 253,201
Other current assets	21,013		21,013		20,029
Accounts payable	112,759		112,759		93,435
Other accrued expenses	9,660		9,660		5,136
Net sales	211,123	$ 187,958	485,830	$ 463,646
Cost of goods sold	144,772	133,550	322,706	311,020
Gross margin	66,351	54,408	163,124	152,626
Store operating, selling and administrative expenses	61,965	53,556	123,869	111,893
Income/(Loss) before provision for income taxes	(1,718)	(5,218)	26,847	28,883
(Benefit)/Provision for income taxes	(496)	(2,042)	6,560	11,150
Net income	$ (1,222)	$ (3,176)	$ 20,287	$ 17,733
Diluted earnings/(loss) per share (in dollars per share)	$ (0.06)	$ (0.15)	$ 1.06	$ 0.84
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ (600)
ASU 2014-09 Effect [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories, net	$ 375		$ 375
Other current assets	447		447
Accounts payable	569		569
Other accrued expenses	392		392
Net sales	(346)		(524)
Cost of goods sold	(344)		(322)
Gross margin	(2)		(202)
Store operating, selling and administrative expenses	(27)		(63)
Income/(Loss) before provision for income taxes	25		(139)
(Benefit)/Provision for income taxes	(7)		(34)
Net income	$ 18		$ (105)
Diluted earnings/(loss) per share (in dollars per share)	$ 0.01		$ 0
Excluding ASU 2014-09 Effect [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories, net	$ 247,760		$ 247,760
Other current assets	20,566		20,566
Accounts payable	112,190		112,190
Other accrued expenses	9,268		9,268
Net sales	211,469		486,354
Cost of goods sold	145,116		323,028
Gross margin	66,353		163,326
Store operating, selling and administrative expenses	61,992		123,932
Income/(Loss) before provision for income taxes	(1,743)		26,986
(Benefit)/Provision for income taxes	(489)		6,594
Net income	$ (1,240)		$ 20,392
Diluted earnings/(loss) per share (in dollars per share)	$ (0.07)		$ 1.06