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Inventories (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory
The components of inventories are as follows:
 
June 30,
2019
 
December 31,
2018
 
(In thousands)
 
(unaudited)
 
 
Finished goods
$
9,586

 
$
5,439

Raw materials
10,505

 
5,502

Total inventories
$
20,091

 
$
10,941