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EARNINGS PER SHARE
 9 Months Ended
Sep. 30, 2018
EARNINGS PER SHARE [Abstract]  
EARNINGS PER SHARE
3.
EARNINGS PER SHARE

The following table sets forth the calculation of basic and diluted net earnings per common share under the two-class method for the three and nine months ended September 30, 2018 and 2017:
  
 
Three Months Ended
  
Nine Months Ended
 
  
 
September 30,
  
September 30,
 
 
 
2018
  
2017
  
2018
  
2017
 
 
            
Numerator:
            
Net earnings
 
$
11,352
  
$
5,024
  
$
16,684
  
$
8,890
 
Less dividends declared:
                
     Class A
  
130
   
131
   
391
   
392
 
     Class B
  
689
   
691
   
2,079
   
2,079
 
Undistributed earnings
 
$
10,533
  
$
4,202
  
$
14,214
  
$
6,419
 
 
                
Undistributed earnings allocation - basic and diluted:
                
     Class A undistributed earnings
 
$
1,812
  
$
729
  
$
2,461
  
$
1,115
 
     Class B undistributed earnings
  
8,721
   
3,473
   
11,753
   
5,304
 
     Total undistributed earnings
 
$
10,533
  
$
4,202
  
$
14,214
  
$
6,419
 
 
                
Net earnings allocation - basic and diluted:
                
     Class A net earnings
 
$
1,942
  
$
860
  
$
2,852
  
$
1,507
 
     Class B net earnings
  
9,410
   
4,164
   
13,832
   
7,383
 
     Net earnings
 
$
11,352
  
$
5,024
  
$
16,684
  
$
8,890
 
 
                
Denominator:
                
Weighted-average shares outstanding:
                
     Class A - basic and diluted
  
2,175
   
2,175
   
2,175
   
2,175
 
     Class B - basic and diluted
  
9,972
   
9,864
   
9,891
   
9,856
 
 
                
Net earnings per share:
                
     Class A - basic and diluted
 
$
0.89
  
$
0.40
  
$
1.31
  
$
0.69
 
     Class B - basic and diluted
 
$
0.94
  
$
0.42
  
$
1.40
  
$
0.75