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INVENTORIES
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
INVENTORIES

6. INVENTORIES

 

The components of inventories are summarized below:

 

               
   December 31, 
   2021   2020 
Raw materials  $1,354   $1,719 
Work in process   3,233    1,420 
Provision for excess and obsolete inventory   (427)   (736)
Total inventories  $4,160   $2,403 

 

Inventories are stated at the lower of cost or a net realizable value determined on a weighted average method.