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Inventory (Tables)
 6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Inventory
Inventory consisted of the following (in thousands):
 
June 30, 2020
 
December 31, 2019
Raw materials
$
417

 
$
318

Work in process
3,716

 
4,299

Finished goods
6,934

 
5,206

 Inventory, gross
11,067

 
9,823

Reserve for obsolescence
(502
)
 
(719
)
 Inventory, net
$
10,565

 
$
9,104