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PROPERTY, PLANT AND EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, plant and equipment are summarized below:

Property, plant and equipment are summarized below:

 

   December 31, 
   2021   2020 
Machinery and equipment  $1,396   $1,210 
Furniture and fixtures   205    205 
Computer hardware and software   541    669 
Leasehold improvements   322    337 
    2,464    2,421 
Less: accumulated depreciation   (1,948)   (1,988)
Total property, plant and equipment, net  $516   $433