Note 9 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,		October 1,		September 30,		October 1,
(In thousands)	2023		2022		2023		2022
Cost of revenue	$	1,035	$	880	$	3,402	$	2,705
Research and development		7,020		4,925		20,006		14,461
Selling, general, and administrative		8,609		8,153		29,000		24,041
Total stock-based compensation	$	16,664	$	13,958	$	52,408	$	41,207

Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block]

(Shares in thousands)	Total
Balance, December 31, 2022		985
Granted		172
Effect of vesting multiplier		331
Vested		(633	)
Balance, September 30, 2023		855