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Stockholders' Equity (Deficit) (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Diluted Earnings per Share
Diluted earnings per share for years ended December 31, 2016, 2015 and 2014 includes the effects of potential common shares when dilutive (in thousands, except per share amounts):
 
2016
 
2015
 
2014
Net income attributable to common stockholders — basic and diluted
$
6,785

 
$
7,060

 
$
7,630

Weighted average number of common shares outstanding
29,530

 
29,209

 
28,926

Dilutive effect of outstanding stock options and restricted stock grants after application of the treasury stock method
348

 
190

 
191

 
 
 
 
 
 
Dilutive shares outstanding
29,878

 
29,399

 
29,117

Basic earnings per share attributable to common stockholders
$
0.23

 
$
0.24

 
$
0.26

Diluted earnings per share attributable to common stockholders
$
0.23

 
$
0.24

 
$
0.26