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Common Stock and Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2022
Common Stock and Earnings Per Share [Abstract]  
Shares Used in Computing Basic and Diluted Earnings per Share
The following table summarizes the shares used in computing basic and diluted earnings per share:

 
Three Months
Ended March 31
 
   
2022
   
2021
 
             
Weighted average common shares, basic
   
13,105,674
     
13,055,871
 
Effect of dilutive securities:
               
Employee stock-based compensation
   
2,756
     
2,690
 
Weighted average common shares, diluted
   
13,108,430
     
13,058,561