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Inventory, Net (Tables)
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Components of Net Inventories
Inventory, net consists of the following:
June 30, 2021December 31, 2020
Work-in-process$3,691 $4,277 
Finished goods468 882 
Inventory, gross4,159 5,159 
Less: Inventory reserves796 2,259 
Inventory, net$3,363 $2,900