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Inventories
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Inventories InventoriesInventories at June 30, 2021 and December 31, 2020 consisted of the following:
(in thousands)June 30, 2021December 31, 2020
Raw material$3,077$3,100
Work-in-process5,5427,079
Finished goods14,36213,288
Supplies7921,112
Total inventories$23,773$24,579