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Inventories
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Inventories

 

4.Inventories

Inventories consist of the following at:

 

(Dollars in thousands)

  June 30, 2021   December 31, 2020 
         
Finished goods  $570   $371 
Work in process   263    139 
Raw materials   354    318 
  Total  $1,187   $828