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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2018
Property Plant And Equipment [Abstract]  
Summary of Property, Plant and Equipment

Property, plant and equipment at June 30, 2018 and December 31, 2017 consists of the following:

 

 

 

June 30,

2018

 

 

December 31,

2017

 

Land

 

$

2,458

 

 

$

2,458

 

Buildings and improvements

 

 

16,787

 

 

 

16,678

 

Machinery and equipment

 

 

106,104

 

 

 

107,722

 

Office furniture, fixtures and equipment

 

 

4,936

 

 

 

4,925

 

Automotive equipment

 

 

1,115

 

 

 

735

 

Construction in progress

 

 

2,912

 

 

 

1,917

 

Total gross value

 

 

134,312

 

 

 

134,435

 

Less accumulated depreciation

 

 

(85,913

)

 

 

(85,114

)

Total net value

 

$

48,399

 

 

$

49,321