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Note 3 - Earnings Per Share ("EPS") (Tables)
 3 Months Ended
Jul. 31, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
  

Net income

  

Shares

  

Per share income

 

For the three months ended July 31, 2021

            

Basic earnings per share

 $3,685   45,139  $0.08 

Dilution associated with stock compensation plans

  —   280   — 

Diluted earnings per share

 $3,685   45,419  $0.08 

For the three months ended August 1, 2020

            

Basic earnings per share

 $7,467   44,654  $0.17 

Dilution associated with stock compensation plans

  —   97   — 

Diluted earnings per share

 $7,467   44,751  $0.17