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Intangible Assets (Tables)
9 Months Ended
Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets
Intangible assets, net, consist of the following (in thousands):
 
September 29,
2018
 
December 30,
2017
Patents
$
20,924

 
$
20,623

Customer relationships
7,669

 
7,669

Licenses-related party
7,500

 
7,500

Acquired technology
5,580

 
5,580

Trademarks
4,234

 
4,036

Capitalized software development costs
3,374

 
2,699

Other
5,466

 
3,691

     Total intangible assets
54,747

 
51,798

Accumulated amortization
(26,285
)
 
(24,675
)
     Intangible assets, net
$
28,462

 
$
27,123

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense for future fiscal years is as follows (in thousands):
Fiscal year
Amount
2018 (balance of year)
$
4,411

2019
3,959

2020
3,714

2021
3,333

2022
1,854

Thereafter
11,191

     Total
$
28,462