v3.4.0.3
Earnings Per Share
 3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share

6. EARNINGS PER SHARE

The components of basic and diluted earnings per share are as follows:

 

     Quarter Ended March  
     2016      2015  
     (Thousands of dollars)  

Weighted average outstanding shares of common stock, basic

      15,600         15,579   

Dilutive effect of unvested restricted stock units

      —           83   
  

 

 

     

 

 

  

Weighted average outstanding shares of common stock, diluted

      15,600         15,662