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Cash Flow Information (Tables)
 9 Months Ended
Jan. 27, 2019
Supplemental Cash Flow Elements [Abstract]  
Schedule of Interest and Income Taxes Paid

Interest and income taxes paid are as follows:

 

     Nine months ended  

(dollars in thousands)

    January 27, 2019      January 28, 2018  

Interest

    $ 54      $ 181  

Income taxes

      6,226        3,426