Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	$ (2,132)	$ (1,631)
Property and Equipment, net	1,311	1,151
Depreciation expense	571	447	$ 571
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 633	561
Estimated useful life	3 years
Software
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 156	79
Estimated useful life	3 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 2,006	1,706
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	520	$ 436
Work in Process
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 128
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