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Inventory (Tables)
 6 Months Ended
Jun. 30, 2019
Inventory  
Schedule of Inventory

             Inventory as of June 30, 2019 and December 31, 2018 consists of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

    

June 30,

    

December 31,

 

 

 

2019

 

2018

 

Raw materials and supplies - production locations

 

$

47,324

 

$

32,941

 

Raw materials and supplies - customer locations

 

 

9,247

 

 

6,755

 

Work-in-process

 

 

12,538

 

 

5,589

 

Finished goods

 

 

4,081

 

 

2,625

 

Inventory

 

$

73,190

 

$

47,910