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Inventory
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventory Inventory
Inventory consisted of the following (in thousands):
 September 30, 2021December 31, 2020
Raw materials$416 $314 
Work in process6,064 4,316 
Finished goods4,716 5,731 
 Inventory$11,196 $10,361 
As a result of the conclusion of the FDA’s period of Enforcement Discretion on May 31, 2021, the Company wrote down $1.0 million of its Section 351 product inventory during the nine months ended September 30, 2021. In addition, during the three and nine months ended September 30, 2021, the Company reserved $0.5 million and $0.7 million, respectively, for inventory related to product lines which have been discontinued. These amounts are included as part of cost of sales on the unaudited condensed consolidated statements of operations for those period.