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Inventory (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventory

Inventory consisted of the following at September 30, 2020 and December 31, 2019 (in thousands):

 

 

 

 

 

 

 

 

 

  

September 30, 2020

 

 

December 31, 2019

 

Finished goods

$

520

 

 

$

105

 

Work-in-process

 

1,262

 

 

 

1,229

 

Raw materials and supplies

 

31,911

 

 

 

35,023

 

Inventory

$

33,693

 

 

$

36,357