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Inventories
 6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories are as follows (in thousands):
 
June 30, 2019
 
December 31, 2018
Raw materials
$
11,076

 
$
10,608

Finished goods
16,284

 
18,798

Inventories
27,360

 
29,406

Less reserve for excess and obsolete inventory
(918
)
 
(2,117
)
Inventories, net
$
26,442

 
$
27,289