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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Reconciliation of Earnings and Number of Shares Used in Calculating Diluted Earnings (Loss) Per Share
The Common Stock of the Company has a preferential dividend rate of at least 105% of the dividend paid on the Class A Common Stock. The Class A Common Stock, which has ten votes per share as opposed to one vote per share for the Common Stock (on all matters other than the election of directors), may be converted at any time on a one-for-one basis into Common Stock at the option of the holder of the Class A Common Stock.

  
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
 
  
2016
  
2015
  
2016
  
2015
 
Numerator:
            
Common:
            
Distributed earnings
 
$
2,290
  
$
2,051
  
$
6,273
  
$
5,348
 
Undistributed earnings
  
4,405
   
4,935
   
9,581
   
11,633
 
Basic
  
6,695
   
6,986
   
15,854
   
16,981
 
Class A Common earnings
  
671
   
669
   
1,555
   
1,626
 
Diluted
 
$
7,366
  
$
7,655
  
$
17,409
  
$
18,607
 
                 
Class A Common:
                
Distributed earnings
 
$
227
  
$
195
  
$
612
  
$
507
 
Undistributed earnings
  
444
   
474
   
943
   
1,119
 
  
$
671
  
$
669
  
$
1,555
  
$
1,626
 
Denominator:
                
Common:
                
Weighted average shares outstanding - basic
  
19,083
   
20,448
   
19,615
   
20,538
 
Assumed conversion of Class A Common Stock
  
2,021
   
2,061
   
2,026
   
2,074
 
Dilutive options, awards and common stock equivalents
  
332
   
282
   
331
   
295
 
                 
Total weighted-average diluted Common Stock
  
21,436
   
22,791
   
21,972
   
22,907
 
                 
Class A Common:
                
Weighted average shares outstanding
  
2,021
   
2,061
   
2,026
   
2,074