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GOODWILL
 12 Months Ended
Dec. 31, 2018
GOODWILL [Abstract]  
GOODWILL
5.
GOODWILL

Changes in the carrying amount of goodwill during the years ended December 31, 2018 and 2017 are as follows:

  
Gross
Goodwill
Balance
  
Accumulated
Impairment
Losses
  
Net
Goodwill
Balance
 
Balance as of January 1, 2017
 
$
117,176
  
$
102,640
  
$
14,536
 
Adjustments
  
-
   
-
   
-
 
Balance as of December 31, 2017
  
117,176
   
102,640
   
14,536
 
Adjustments
  
-
   
-
   
-
 
Balance as of December 31, 2018
 
$
117,176
  
$
102,640
  
$
14,536
 

As of December 31, 2018 and 2017, the goodwill balance of $14.5 million is related to the Transportation and Skilled Trades segment.