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PROPERTY, PLANT AND EQUIPMENT, NET
 12 Months Ended
Dec. 31, 2016
PROPERTY, PLANT AND EQUIPMENT, NET [Abstract]  
PROPERTY, PLANT AND EQUIPMENT, NET
8.
PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment, net consist of the following:


  
December 31,
 
  
2016
  
2015
 
Land
 
$
2,234
  
$
2,240
 
Buildings and improvements
  
30,061
   
29,346
 
Machinery and equipment
  
113,780
   
116,921
 
Construction in progress
  
3,029
   
4,949
 
   
149,104
   
153,456
 
Accumulated depreciation
  
(100,349
)
  
(95,845
)
Property, plant and equipment, net
 
$
48,755
  
$
57,611
 


Depreciation expense for the years ended December 31, 2016, 2015 and 2014 was $14.8 million, $16.0 million and $15.0 million, respectively.