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Inventories
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories are stated at the lower of cost or net realizable value. Cost is computed using average cost. Inventory write-downs are based on reviews for obsolescence determined primarily by future demand forecasts.

Inventory amounted to $30.9 million and $1.9 million, respectively, for the years ended December 31, 2021 and 2020 and consisted of the following (in thousands):
December 31, 2021December 31, 2020
Raw materials$20,382 $1,289 
Work in process10,659 578 
Finished goods
901 — 
Less: inventory reserve
(1,059)— 
Total inventory
$30,883 $1,867