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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Schedule of calculation of basic and diluted earnings per share
The following table sets forth the computation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017:


Three Months Ended June 30,
 
Six Months Ended June 30,
 
2018
 
2017
 
2018
 
2017
Net income
$
8,719

 
$
6,139

 
$
19,376

 
$
1,594


 
 


 
 
 


Basic – weighted average shares outstanding
28,075

 
27,891

 
28,059

 
27,894


 
 


 
 
 


Effect of dilutive potential securities
771

 
248

 
680

 
192


 
 


 
 
 


Diluted – weighted average shares outstanding
28,846

 
28,139

 
28,739

 
28,086


 
 


 
 
 


Net income (per share)
 

 
 

 
 

 
 

Basic
$
0.31

 
$
0.22

 
$
0.69

 
$
0.06

Diluted
0.30

 
0.22

 
0.67

 
0.06