Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories, net	$ 256,854		$ 256,854		$ 253,201
Other current assets	23,395		23,395		20,029
Accounts payable	109,445		109,445		93,435
Other accrued expenses	9,155		9,155		5,136
Net sales	216,888	$ 237,834	702,718	$ 701,480
Cost of goods sold	146,376	161,721	469,082	472,741
Gross margin	70,512	76,113	233,636	228,739
Store operating, selling and administrative expenses	62,342	57,993	186,211	169,886
Income/(Loss) before provision for income taxes	2,119	11,734	28,965	40,617
Provision for income taxes	620	4,170	7,179	15,320
Net income	$ 1,499	$ 7,564	$ 21,786	$ 25,297
Diluted earnings/(loss) per share (in dollars per share)	$ 0.08	$ 0.37	$ 1.15	$ 1.21
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	$ (278)		$ (278)
Other current assets	201		201
Accounts payable	1,116		1,116
Other accrued expenses	837		837
Net sales	508		(17)
Cost of goods sold	364		42
Gross margin	144		(59)
Store operating, selling and administrative expenses	51		(12)
Income/(Loss) before provision for income taxes	92		(47)
Provision for income taxes	27		(12)
Net income	$ 65		$ (35)
Diluted earnings/(loss) per share (in dollars per share)	$ 0		$ 0
Excluding ASU 2014-09 Effect [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories, net	$ 257,132		$ 257,132
Other current assets	23,194		23,194
Accounts payable	108,329		108,329
Other accrued expenses	8,318		8,318
Net sales	216,380		702,735
Cost of goods sold	146,012		469,040
Gross margin	70,368		233,695
Store operating, selling and administrative expenses	62,291		186,223
Income/(Loss) before provision for income taxes	2,027		29,012
Provision for income taxes	593		7,191
Net income	$ 1,434		$ 21,821
Diluted earnings/(loss) per share (in dollars per share)	$ 0.08		$ 1.15