Property, Equipment and Improvements, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Jan. 28, 2017
Property, equipment and improvements
Total property, equipment and improvements, gross	$ 173,572		$ 171,859
Less accumulated depreciation and amortization	(119,237)		(116,527)
Total property, equipment and improvements, net	54,335		55,332
Impairment of store assets	70	$ 168
Land
Property, equipment and improvements
Total property, equipment and improvements, gross	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
Store leasehold improvements
Property, equipment and improvements
Total property, equipment and improvements, gross	49,473		49,450
Store furniture and fixtures
Property, equipment and improvements
Total property, equipment and improvements, gross	69,502		69,598
Corporate office and distribution center furniture, fixtures and equipment
Property, equipment and improvements
Total property, equipment and improvements, gross	4,907		4,880
Computer and point of sale hardware and software
Property, equipment and improvements
Total property, equipment and improvements, gross	33,235		32,313
Construction in progress
Property, equipment and improvements
Total property, equipment and improvements, gross	$ 2,158		$ 1,321