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Company Business and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
	Feb. 02, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018	May 03, 2019	Feb. 03, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit	$ (62,592)	$ (62,592)				$ (50,542)				$ (62,592)	$ (50,542)
Revenue		6,127	$ 5,842	$ 7,073	$ 5,402	6,884	$ 7,796	$ 7,868	$ 6,817
Deferred revenue	2,200	2,200				5,100				2,200	5,100
Revenue recognized											2,700
Accrued revenue	1,400	1,400				400				1,400	400
Aggregate minimum licensing revenue										$ 60,700
Contractual Rights On Revenue Recognized Period										9 years
Income taxes
Maximum percentage of tax benefit upon ultimate settlement										50.00%
Selling, general and administrative expense [Member]
Marketing, advertising and promotional costs
Marketing, advertising and promotional costs										$ 1,000	2,700
ASU 2014-09 \| Adjustment
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit						$ 300					$ 300
Revenue										$ 1,100
ASU 2016-02 \| Subsequent Event
Income taxes
Operating lease, right-of-use asset													$ 4,000
Operating lease, lease liability													$ 4,000
Leasehold Improvements
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Estimated useful lives										Over their estimated useful lives or related lease term, whichever is shorter.
Senior Secured Credit Facility
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Adjusted Level Of Earnings Before Interest Tax Depreciation And Amortization	9,500
Minimum cash balance	$ 1,000	$ 1,000								$ 1,000
Senior Secured Credit Facility \| Scenario Forecast
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Additional liquidity raised												$ 2,000
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Length of fiscal year										364 days
Estimated useful life										3 years
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Length of fiscal year										371 days
Estimated useful life										7 years