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Inventory
9 Months Ended
Sep. 30, 2022
Inventory Disclosure [Abstract]  
Inventory Inventory
Inventory consisted of the following (in thousands):
 September 30, 2022December 31, 2021
Raw materials$670 $364 
Work in process7,604 6,112 
Finished goods5,702 4,913 
Inventory$13,976 $11,389 
As a result of the conclusion of the FDA’s period of Enforcement Discretion on May 31, 2021, the Company wrote-off $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 wrote-down $0.5 million and $0.7 million, respectively, for inventory related to product lines which had been discontinued. These amounts are included as part of cost of sales on the unaudited condensed consolidated statements of operations for those periods.
There were no significant, unusual write-downs of inventory during the three or nine months ended September 30, 2022