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Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2017
Equity [Abstract]  
Diluted Earnings per Share
Diluted earnings per share for the three and six months ended June 30, 2017 and 2016 includes the effects of potential common shares issuable upon the vesting of restricted stock, when dilutive.
    
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
 
2017
 
2016
 
2017
 
2016
Net income
$
131

 
$
2,720

 
$
760

 
$
5,283

Weighted average number of common shares
outstanding
 
29,874

 
29,449

 
29,873

 
29,449

Dilutive effect of restricted stock grants after
application of the treasury stock method
 
581

 
307

 
452

 
183

Dilutive shares outstanding
 
30,455

 
29,756

 
30,325

 
29,632

Basic and diluted earnings per share
$
0.00

 
$
0.09

 
$
0.03

 
$
0.18