Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jan. 30, 2016	Jan. 31, 2015
Deferred tax assets:
Inventories	$ 9,082	$ 6,858
Deferred revenue	297	189
Accrued bonus	1,820	915
Deferred rent	19,733	17,250
Other	5,522	2,512
Deferred tax assets	36,454	27,724
Deferred tax liabilities:
Property and equipment	(26,780)	(18,912)
Other	(1,167)	(931)
Deferred tax liabilities	(27,947)	(19,843)
Deferred tax assets (liabilities)	$ 8,507	$ 7,881