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Property, Plant and Equipment (Tables)
 9 Months Ended
Sep. 30, 2017
Property Plant And Equipment [Abstract]  
Summary of Property, Plant and Equipment

Property, plant and equipment at September 30, 2017 and December 31, 2016 consists of the following:

 

 

 

September 30,

2017

 

 

December 31,

2016

 

Land

 

$

2,458

 

 

$

2,458

 

Buildings and improvements

 

 

16,610

 

 

 

15,515

 

Machinery and equipment

 

 

106,641

 

 

 

102,146

 

Office furniture, fixtures and equipment

 

 

4,701

 

 

 

5,016

 

Automotive equipment

 

 

398

 

 

 

387

 

Construction in progress

 

 

2,220

 

 

 

8,047

 

Total gross value

 

 

133,028

 

 

 

133,569

 

Less accumulated depreciation

 

 

(83,533

)

 

 

(83,274

)

Total net value

 

$

49,495

 

 

$

50,295