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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Income Taxes        
Income tax (benefit) expense $ 1,911 $ 2,304 $ (92) $ 925
Effective tax rate 25.80% 26.00% 172.40% 56.20%
Federal statutory rate     21.00%