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3. EARNINGS PER SHARE (''EPS'') (Tables)
 12 Months Ended
May 31, 2020
Earnings Per Share [Abstract]  
Earnings per share

    The following table presents the computation of basic and diluted net (loss) income per share attributable to Aehr Test Systems common shareholders (in thousands, except per share data):

 

    Year Ended May 31,
    2020   2019   2018
Numerator: Net (loss) income   $ (2,802)   $ (5,235)   $ 528  
                         
Denominator for basic net (loss) income per share:                        
  Weighted-average shares outstanding     22,882       22,387       21,732  
                         
Shares used in basic net (loss) income per share calculation     22,882       22,387       21,732  
                         
Effect of dilutive securities.     --       --       1,050  
                         
Denominator for diluted net (loss) income per share     22,882       22,387       22,782  
                         
Basic net (loss) income per share   $ (0.12)   $ (0.23)   $ 0.02  
                         
Diluted net (loss) income per share   $ (0.12)   $ (0.23)   $ 0.02