Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Jan. 28, 2017
Property, Plant and Equipment [Line Items]
Work in Process			$ 128
Less: Accumulated depreciation	$ (2,320)		(2,132)
Property and Equipment, net	1,445		1,311
Depreciation expense	220	$ 127
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 645		633
Estimated useful life	3 years
Software
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 295		156
Estimated useful life	3 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 2,041		2,006
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 784		$ 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