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Stockholders' Equity (Tables)
 9 Months Ended
Sep. 30, 2017
Equity [Abstract]  
Diluted Earnings per Share
Diluted earnings per share for the three and nine months ended September 30, 2017 and 2016 includes the effects of potential common shares issuable upon the vesting of restricted stock, when dilutive.
    
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2017
 
2016
 
2017
 
2016
Net income
$
4,763

 
$
1,147

 
$
5,523

 
$
6,431

Weighted average number of common shares
outstanding
 
29,875

 
29,449

 
29,874

 
29,449

Dilutive effect of restricted stock grants after
application of the treasury stock method
 
612

 
652

 
505

 
334

Dilutive shares outstanding
 
30,487

 
30,101

 
30,379

 
29,783

Basic and diluted earnings per share
$
0.16

 
$
0.04

 
$
0.18

 
$
0.22