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NOTE 8 - EARNINGS PER SHARE (Tables)
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Earnings (loss) per share
   Three Months Ended
   March 31,
2021
  March 31,
2020
(in thousands except per share data)      
Numerator for basic and diluted          
earnings (loss) per share:          
      Net income (loss)  $(333)  $(554)
           
Denominator for basic          
earnings (loss) per share:          
      Weighted-average shares   8,420    8,219 
           
Employee stock options and awards   251    56 
           
Denominator for diluted          
earnings (loss) per share:          
      Adjusted weighted-average shares &          
      assumed conversions of stock options   8,671    8,275 
           
Basic and diluted          
earnings (loss) per share:          
      Total basic earnings (loss) per share  $(0.04)  $(0.07)
      Total diluted earnings (loss) per share  $(0.04)  $(0.07)