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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following at December 31, 2018 and 2017 (in thousands):
 
December 31,
 
2018
 
2017
Raw materials
$
10,520

 
$
11,217

Work in process
527

 
397

Finished goods
21,909

 
26,807

Total
$
32,956

 
$
38,421