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Inventory (Tables)
6 Months Ended
Jun. 28, 2019
Inventory Disclosure [Abstract]  
Inventory
Inventory consisted of the following (in thousands):
 
June 30,
2019
 
December 31, 2018
Raw materials
$
2,482

 
$
1,922

Work in process
8,571

 
6,170

Finished goods
6,630

 
3,836

Total
$
17,683

 
$
11,928

 
 
 
 
Balance Sheet classification:
 
 
 
Current portion included in Inventory
$
12,352

 
$
9,838

Long-term portion included in Other long-term assets
5,331

 
2,090

Total
$
17,683

 
$
11,928