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Note 13 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Nov. 02, 2019
Nov. 03, 2018
Nov. 02, 2019
Nov. 02, 2019
Nov. 03, 2018
Share-based Payment Arrangement, Expense $ 2.4 $ 3.6 $ 8.9   $ 11.6
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (69,377) 17,225      
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period     295,466   290,756
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 11,000 45,000 461,234 461,234 378,833
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 22.44 $ 33.52 $ 22.94   $ 32.24
Restricted Stock [Member] | Share-based Compensation Award, Cliff-vesting, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     12,914   3,642
Restricted Stock [Member] | Share-based Compensation Award, Cliff-vesting, Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     448,320   9,500
Restricted Stock [Member] | Share-based Compensation Award, Cliff-vesting, Tranche Three [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period         365,691
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0 0 180,000   155,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 23.42   $ 31.84
Performance Shares [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Percentage Earned     0.00%    
Performance Shares [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Percentage Earned     200.00%    
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,350 780 55,679   38,728
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 23.27 $ 35.66 $ 19.59   $ 34.33
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Dividend Equivalent     4,023   2,308