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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories consisted of the following:

 

(Dollars in thousands)  September 30, 2021   December 31, 2020 
Raw materials  $5,022   $5,455 
Finished goods   1,036    1,273 
Total inventories  $6,058   $6,728