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Inventories (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories consist of the following:

 

(Dollars in thousands)

 

    June 30, 2020     December 31, 2019  
Raw materials   $ 8,772     $ 9,336  
Finished goods     1,977       2,995  
Total inventories   $ 10,749     $ 12,331