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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2018
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Earnings and Weighted Average Shares Outstanding used in Computation of Basic and Diluted Earnings Per Share
The earnings and weighted average shares outstanding used in the computation of basic and diluted earnings per share are as follows:


   Years Ended December 31,    
 
 
2018
  
2017
 
Numerator:
      
Net earnings (loss)
 
$
20,709
  
$
(11,897
)
Less dividends declared:
        
     Class A
  
522
   
522
 
     Class B
  
2,796
   
2,757
 
Undistributed earnings (loss)
 
$
17,391
  
$
(15,176
)
 
        
Undistributed earnings (loss) allocation - basic and diluted:
        
     Class A undistributed earnings (loss)
 
$
2,999
  
$
(2,635
)
     Class B undistributed earnings (loss)
  
14,392
   
(12,541
)
     Total undistributed earnings (loss)
 
$
17,391
  
$
(15,176
)
 
        
Net earnings (loss) allocation - basic and diluted:
        
     Class A net earnings (loss)
 
$
3,521
  
$
(2,113
)
     Class B net earnings (loss)
  
17,188
   
(9,784
)
     Net earnings (loss)
 
$
20,709
  
$
(11,897
)
 
        
Denominator:
        
Weighted average shares outstanding:
        
     Class A - basic and diluted
  
2,175
   
2,175
 
     Class B - basic and diluted
  
9,939
   
9,857
 
 
        
Net earnings (loss) per share:
        
Class A - basic and diluted
 
$
1.62
  
$
(0.97
)
Class B - basic and diluted
 
$
1.73
  
$
(0.99
)