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PROPERTY, PLANT AND EQUIPMENT (Tables)
9 Months Ended
Sep. 30, 2015
Property, Plant and Equipment [Abstract]  
Schedule of components of property, plant and equipment, net
Property, plant and equipment consists of the following (in thousands): 
 
September 30,
2015
 
December 31,
2014
Land, buildings and improvements
$
83,531

 
$
83,119

Machinery, equipment and fixtures
79,382

 
78,003

Office furniture, equipment and vehicles
22,626

 
22,265

Construction in progress
222

 
399

 
185,761

 
183,786

Accumulated depreciation
(122,010
)
 
(117,912
)
Property, plant and equipment, net
$
63,751

 
$
65,874