Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

v3.20.1
Inventories (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of inventory A summary of the Company's inventories is shown below (in thousands):
March 31, December 31,
2020 2019
Supplies $ 7,851    $ 9,598   
Raw materials 997    746   
Work in process 3,221    4,608   
Finished goods 1,124    2,531   
Total inventories $ 13,193    $ 17,483