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PROPERTY, PLANT AND EQUIPMENT
3 Months Ended
Mar. 31, 2015
PROPERTY, PLANT AND EQUIPMENT [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
6.
 PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:


 
 
March 31,
  
December 31,
 
 
 
2015
  
2014
 
Land
 
$
3,278
  
$
3,293
 
Buildings and improvements
  
30,651
   
31,067
 
Machinery and equipment
  
118,942
   
117,973
 
Construction in progress
  
4,467
   
4,764
 
 
  
157,338
   
157,097
 
Accumulated depreciation
  
(89,508
)
  
(86,436
)
Property, plant and equipment, net
 
$
67,830
  
$
70,661
 


Depreciation expense for the three months ended March 31, 2015 and 2014 was $3.8 million and $2.8 million, respectively.