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Intangible Assets Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 29, 2018
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 56,247	$ 55,158
Accumulated amortization	(28,614)	(27,234)
Intangible assets, net	27,633	27,924
Patents
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	22,224	21,323
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	7,669	7,669
Licenses-related party
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	7,500	7,500
Acquired technology
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	5,580	5,580
Trademarks
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	4,372	4,190
Capitalized software development costs
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	3,436	3,430
Other
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 5,466	$ 5,466

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
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