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Note 17 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Effective Income Tax Rate Reconciliation, Percent, Total 23.70% 25.30% 24.10% 24.40%
Other Tax Expense (Benefit) $ 0 $ 200 $ 100 $ 700
Effective Income Tax Rate, Before Discrete Benefits of Provisions 0.00% 26.00% 23.90% 25.70%
Foreign Tax Authority [Member]        
Deferred Income Tax Expense (Benefit), Total     $ 0