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Note 10 - Stock-based Compensation (Tables)
12 Months Ended
May 02, 2020
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   

Number

of Shares

   

Price (a)

 

Options outstanding, beginning of year

    322,445     $ 11.14  

Granted

    -       -  

Exercised

    (125,100 )     5.92  

Cancelled

    (2,800 )     17.59  

Options outstanding, end of year

    194,545       14.01  

Options exercisable, end of year

    183,145       13.00