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6. INVENTORY (Tables)
9 Months Ended
Sep. 30, 2022
Inventory Disclosure [Abstract]  
Components of Inventory

Inventory consists of the following:

             
      September 30,     December 31,
(in thousands)     2022     2021
Raw materials   $ 1,572   $    1,780

Work in process 

    190     -

 

  $ 1,762   $    1,780