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Property, Plant & Equipment (Tables)
6 Months Ended
Jun. 30, 2017
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment [Table]
Property, Plant & Equipment

Property, plant and equipment consisted of the following for the periods specified:
 
June 30, 2017
 
December 31, 2016
Property, plant and equipment
$
141,881,000

 
$
140,658,000

Accumulated depreciation
(73,241,000
)
 
(70,057,000
)
Property, plant and equipment — net
$
68,640,000

 
$
70,601,000