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GOODWILL AND LONG-LIVED ASSETS (Tables)
 6 Months Ended
Jun. 30, 2018
GOODWILL AND LONG-LIVED ASSETS [Abstract]  
Changes in Carrying Amount of Goodwill
The carrying amount of goodwill at June 30 2017 is as follows:

  
Gross
Goodwill
Balance
  
Accumulated
Impairment
Losses
  
Net
Goodwill
Balance
 
Balance as of January 1, 2018
 
$
117,176
  
$
(102,640
)
 
$
14,536
 
Adjustments
  
-
   
-
   
-
 
Balance as of June 30, 2018
 
$
117,176
  
$
(102,640
)
 
$
14,536
 
 
  
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 June 30, 2017
 
$
117,176
  
$
(102,640
)
 
$
14,536