Note 8 - Intangible Assets (Tables)

9 Months Ended

Sep. 26, 2020

Notes Tables

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

	Three Months Ended				Nine Months Ended
	September 26,		September 28,		September 26,		September 28,
(In thousands)	2020		2019		2020		2019
Research and development	$	17	$	14	$	45	$	41
Amortization of acquired intangible assets		603		3,389		3,846		10,168
	$	620	$	3,403	$	3,891	$	10,209