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Inventory (Tables)
3 Months Ended
Mar. 29, 2019
Inventory Disclosure [Abstract]  
Inventory
Inventory consisted of the following (in thousands):
 
March 31,
2019
 
December 31, 2018
Raw materials
$
2,245

 
$
1,922

Work in process
6,514

 
6,170

Finished goods
4,862

 
3,836

Total
$
13,621

 
$
11,928

 
 
 
 
Balance Sheet classification:
 
 
 
Current portion included in Inventory
$
10,143

 
$
9,838

Long-term portion included in Other long-term assets
3,478

 
2,090

Total
$
13,621

 
$
11,928