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Note 7 - Intangible Assets

12 Months Ended

Jan. 01, 2022

Intangible Assets Disclosure [Text Block]

In connection with our acquisitions of Mirametrix, Inc. in November 2021, Silicon Image, Inc. in March 2015, and SiliconBlue Technologies, Inc. in December 2011, we recorded identifiable intangible assets related to developed technology, customer relationships, licensed technology, patents, and in-process research and development based on guidance for determining fair value under the provisions of ASC 820, "Fair Value Measurements." We are amortizing the intangible assets using the straight-line method over their estimated useful lives. Additionally, we have entered into license agreements for third-party technology and recorded them as intangible assets. These licenses are being amortized to Research and development expense over their estimated useful lives. No impairment charges relating to acquired intangible assets were recorded for fiscal 2021, 2020, or 2019.

The following tables summarize the details of our Intangible assets, net as of January 1, 2022 and January 2, 2021:

	*January 1, 2022*
(In thousands)	*Weighted Average Amortization Period (in years)*		*Gross*		*Accumulated Amortization*			*Intangible assets, net*
Existing technology		5.1	$	124,487	$	(111,090	)	$	13,397
Customer relationships		6.1		32,734		(22,947	)		9,787
Trade name / trademarks		10.0		1,500		(19	)		1,481
Licensed technology		6.3		6,551		(1,434	)		5,117
Total identified intangible assets			$	165,272	$	(135,490	)	$	29,782

	*January 2, 2021*
(In thousands)	*Weighted Average Amortization Period (in years)*		*Gross*		*Accumulated Amortization*			*Intangible assets, net*
Developed technology		5.0	$	110,987	$	(109,162	)	$	1,825
Customer relationships		5.8		22,934		(22,281	)		653
Licensed technology		6.6		4,376		(533	)		3,843
Total identified intangible assets			$	138,297	$	(131,976	)	$	6,321

We recorded amortization expense related to intangible assets on the Consolidated Statements of Operations as presented in the following table:

	*Year Ended*
	*January 1,*		*January 2,*		*December 28,*
(In thousands)	*2022*		*2021*		*2019*
Research and development	$	901	$	124	$	55
Amortization of acquired intangible assets		2,613		4,449		13,558
	$	3,514	$	4,573	$	13,613

The annual expected amortization expense of acquired intangible assets is as follows:

Fiscal year	(in thousands)
2022	$	4,771
2023		4,492
2024		4,280
2025		4,233
2026		4,233
Thereafter		7,773
Total	$	29,782