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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Components of Basic and Diluted Earnings Per Share
The components of basic and diluted earnings per share for the years ended December 31, are as follows:
 
 
2018
 
2017
 
2016
 
 
(in thousands)
Weighted average outstanding shares of common stock, basic
 
15,818

 
15,762

 
15,663

Dilutive effect of unvested restricted stock units
 

 

 

Weighted average outstanding shares of common stock, diluted
 
15,818

 
15,762

 
15,663