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Earnings (Loss) Per Share
 12 Months Ended
Dec. 31, 2018
Earnings (Loss) Per Share [Abstract]  
Earnings (Loss) Per Share
Note K - Earnings (Loss) Per Share

The following is a reconciliation of the denominators used in the calculation of basic and diluted earnings (loss) per share for the years ended December 31:

  
2018
  
2017
  
2016
 
Average shares outstanding for basic earnings (loss) per share
  
14,964,812
   
15,065,216
   
15,071,900
 
             
Dilutive effect of share equivalents
  
–
   
42,220
   
12,108
 
             
Average shares outstanding for diluted earnings (loss) per share
  
14,964,812
   
15,107,436
   
15,084,008