Property and Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Property, Plant and Equipment [Abstract]
Impairment charges for property and equipment	$ 1,586	$ 2,761	$ 1,982
Interest Costs Capitalized	$ 1,400	$ 300	$ 0