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Property, Plant and Equipment (Tables)
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Property, plant and equipment consist of the following at:

Property, plant and equipment consist of the following at:

 

(Dollars in thousands)  September 30,
2021
   December 31,
2020
 
Land  $52   $ 
Leasehold improvements   356    262 
Vehicles   14     
Computers and related software   2,840    1,603 
Machinery and equipment   941    885 
Office furniture and fixtures   60    38 
Construction in progress   16,402     
    20,665    2,788 
Less: Accumulated depreciation   (2,375)   (1,941
   $18,290   $847