Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Deferred tax assets:
Inventories	$ 10,223	$ 9,082
Deferred revenue	416	297
Accrued bonus	2,465	1,820
Deferred rent	22,753	19,733
Other	6,999	5,522
Deferred tax assets	42,856	36,454
Deferred tax liabilities:
Property and equipment	(30,349)	(26,780)
Other	(1,468)	(1,167)
Deferred tax liabilities	(31,817)	(27,947)
Deferred tax assets (liabilities)	$ 11,039	$ 8,507