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Note 8 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Feb. 02, 2019
Feb. 02, 2019
Dec. 30, 2017
Dec. 31, 2016
Income Tax Expense (Benefit), Total $ (183) $ (424)   $ (574) $ 5,897  
Effective Income Tax Rate Reconciliation, Percent, Total 17.80%     3.10% 42.70%  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%     21.00% 34.00%  
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount         $ 1,400  
Operating Loss Carryforwards, Total     $ 21,000 $ 21,000    
Tax Credit Carryforward, Amount     900 900    
Tax Adjustments, Settlements, and Unusual Provisions       200    
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability       (100)    
Tax Cuts And Jobs Act of 2017 Change in Tax Rate Income Tax Expense (Benefit)       (100)    
Unrecognized Tax Benefits, Ending Balance     418 418 659 $ 961
Unrecognized Tax Benefits that Would Impact Effective Tax Rate     200 200 300  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total       100 100  
Income Tax Examination, Penalties and Interest Expense, Total $ 100     100 100  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit     400 400    
Foreign Tax Authority [Member]            
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount       $ 500 $ 300  
Foreign Tax Authority [Member] | UNITED KINGDOM            
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount     $ 3,700