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Inventories (Tables)
 3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Components of Inventories

The components of inventories consisted of the following:

 

 

 

March 31,

 

 

December 31,

 

(in thousands)

 

2020

 

 

2019

 

Raw materials

 

$

11,895

 

 

$

11,788

 

Finished goods

 

 

5,633

 

 

 

5,481

 

Inventories

 

$

17,528

 

 

$

17,269