Note 9 - Intangible Assets (Tables)

12 Months Ended

Jan. 02, 2021

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	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

	December 28, 2019
(In thousands)	Weighted Average Amortization Period (in years)	Gross		Accumulated Amortization			Intangible assets, net
Developed technology	5.0	$	110,987	$	(105,594	)	$	5,393
Customer relationships	5.8		22,934		(21,400	)		1,534
Licensed technology	5.0		459		(409	)		50
Total identified intangible assets		$	134,380	$	(127,403	)	$	6,977

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

	Year Ended
	January 2,		December 28,		December 29,
(In thousands)	2021		2019		2018
Research and development	$	124	$	55	$	277
Amortization of acquired intangible assets		4,449		13,558		17,690
	$	4,573	$	13,613	$	17,967

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal year	(in thousands)
2021	$	2,877
2022		876
2023		600
2024		501
2025		501
Thereafter		966
Total	$	6,321