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Property, Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2021
Property Plant And Equipment [Abstract]  
Summary of Property, Plant and Equipment Property, Plant and Equipment — Property, plant and equipment at March 31, 2021 and December 31, 2020 consists of the following:

 

 

 

March 31,

2021

 

 

December 31,

2020

 

Land

 

$

2,756

 

 

$

2,756

 

Buildings and improvements

 

 

19,731

 

 

 

19,786

 

Machinery and equipment

 

 

126,425

 

 

 

124,199

 

Office furniture, fixtures and equipment

 

 

9,530

 

 

 

7,403

 

Automotive equipment

 

 

1,747

 

 

 

1,747

 

Construction in progress

 

 

8,767

 

 

 

10,392

 

Total

 

 

168,956

 

 

 

166,283

 

Less accumulated depreciation

 

 

(103,011

)

 

 

(100,901

)

Property, plant and equipment, net

 

$

65,945

 

 

$

65,382