Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

v3.21.1
Inventories (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Summary of inventories
Inventories is comprised of the following items:
 
 
  
March 31,
 
  
December 31,
 
 
  
2021
 
  
2020
 
 
  
 
 
  
(Revised)
 
Supplies
  
$
4,816
 
  
$
5,010
 
Raw materials
  
 
7,150
 
  
 
7,047
 
Work in process
  
 
6,925
 
  
 
5,710
 
Finished goods
  
 
7,283
 
  
 
7,684
 
 
  
 
 
 
  
 
 
 
Total
  
$
26,174
 
  
$
25,451