Property and Equipment (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, Plant and Equipment [Line Items]
Work in Process					$ 128
Less: Accumulated depreciation	$ (2,417)		$ (2,417)		(2,132)
Property and Equipment, net	1,281		1,281		1,311
Depreciation expense	185	$ 129	403	$ 256
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	637		$ 637		633
Estimated useful life			3 years
Software
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	298		$ 298		156
Estimated useful life			3 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	1,996		$ 1,996		2,006
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 767		$ 767		$ 520
Minimum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life			5 years
Maximum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life			7 years
Maximum | Leasehold Improvements
Property, Plant and Equipment [Line Items]
Estimated useful life			5 years