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PROPERTY, PLANT AND EQUIPMENT (Tables)
3 Months Ended
Mar. 31, 2017
PROPERTY, PLANT AND EQUIPMENT [Abstract]  
Property, Plant and Equipment
Property, plant and equipment at March 31, 2017 and December 31, 2016 are summarized as follows:

  
March 31,
2017
  
December 31,
2016
 
Land
 
$
4,239
  
$
4,208
 
Building
  
47,316
   
45,735
 
Equipment
  
181,547
   
177,841
 
Construction in progress
  
14,932
   
17,357
 
   
248,034
   
245,141
 
Less: accumulated depreciation
  
83,408
   
79,387
 
Property, plant and equipment, net
 
$
164,626
  
$
165,754