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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory
The principal categories of inventories, net of reserves of $0 and $914 at December 31, 2020 and 2019, respectively, are comprised of the following:
Inventory:20202019
Finished goods$— $3,020 
Raw materials— 550 
Total$— $3,570