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Inventories (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of components of inventory
Inventories are as follows (in thousands):
 
September 30, 2019
 
December 31, 2018
Raw materials
$
7,339

 
$
10,608

Finished goods
17,809

 
18,798

Inventories
25,148

 
29,406

Less reserve for excess and obsolete inventory
(815
)
 
(2,117
)
Inventories, net
$
24,333

 
$
27,289