Property, Equipment and Improvements, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
Property, equipment and improvements
Total property, equipment and improvements, gross	$ 172,897		$ 172,897		$ 171,859
Less accumulated depreciation and amortization	(120,914)		(120,914)		(116,527)
Total property, equipment and improvements, net	51,983		51,983		55,332
Long-lived asset impairments	93	$ 309	163	$ 476
Land
Property, equipment and improvements
Total property, equipment and improvements, gross	1,597		1,597		1,597
Corporate office, distribution center and related building improvements
Property, equipment and improvements
Total property, equipment and improvements, gross	12,700		12,700		12,700
Store leasehold improvements
Property, equipment and improvements
Total property, equipment and improvements, gross	49,362		49,362		49,450
Store furniture and fixtures
Property, equipment and improvements
Total property, equipment and improvements, gross	69,244		69,244		69,598
Corporate office and distribution center furniture, fixtures and equipment
Property, equipment and improvements
Total property, equipment and improvements, gross	4,938		4,938		4,880
Computer and point of sale hardware and software
Property, equipment and improvements
Total property, equipment and improvements, gross	33,541		33,541		32,313
Construction in progress
Property, equipment and improvements
Total property, equipment and improvements, gross	$ 1,515		$ 1,515		$ 1,321