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Intangible Assets (Tables)
 12 Months Ended
Dec. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Components of Intangible Assets
Intangible assets, net consist of the following (in thousands):
 
December 29,
2018
 
December 30,
2017
Cost
 
 
 
Patents
$
21,323

 
$
20,623

Customer relationships
7,669

 
7,669

Licenses-related party
7,500

 
7,500

Acquired technology
5,580

 
5,580

Trademarks
4,190

 
4,036

Capitalized software development costs
3,430

 
2,699

Other
5,466

 
3,691

Total cost
55,158

 
51,798

Accumulated amortization
 
 
 
Patents
(8,868
)
 
(8,473
)
Customer relationships
(4,921
)
 
(4,154
)
Licenses-related party
(5,252
)
 
(4,831
)
Acquired technology
(3,624
)
 
(3,066
)
Trademarks
(1,889
)
 
(1,611
)
Capitalized software development costs
(1,983
)
 
(1,864
)
Other
(697
)
 
(676
)
Total accumulated amortization
(27,234
)
 
(24,675
)
Net carrying amount
$
27,924

 
$
27,123
Estimated Amortization Expense
Estimated amortization expense for each of the next fiscal years is as follows (in thousands):
Fiscal year
Amount
2019
$
4,218

2020
3,748

2021
3,647

2022
2,941

2023
1,737

Thereafter
11,633

Total
$
27,924