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Inventory (Tables)
3 Months Ended
Apr. 03, 2020
Inventory Disclosure [Abstract]  
Inventory
Inventory consisted of the following (in thousands):
 
March 31, 2020
 
December 31, 2019
Raw materials
$
2,215

 
$
2,709

Work in process
14,278

 
9,447

Finished goods
4,865

 
4,367

Total
$
21,358

 
$
16,523

Balance Sheet classification:
 
 
 
Current portion included in inventory
$
15,417

 
$
12,886

Long-term portion included in other long-term assets
5,941

 
3,637

Total
$
21,358

 
$
16,523