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Inventory (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Components of Inventory

Inventory is valued at the lower of cost or net realizable value and is comprised of the following (in thousands):

 

 

 

June 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

Raw materials

 

$

3,909

 

 

$

3,590

 

Work-in-process

 

 

1,342

 

 

 

1,435

 

Finished goods

 

 

7,083

 

 

 

7,223

 

Inventory

 

$

12,334

 

 

$

12,248