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Note 8 - Intangible Assets (Tables)
3 Months Ended
Apr. 03, 2021
Notes Tables  
Finite-lived Intangible Assets Amortization Expense [Table Text Block]
  

Three Months Ended

 
  

April 3,

  

March 28,

 

(In thousands)

 

2021

  

2020

 

Research and development

 $198  $14 

Amortization of acquired intangible assets

  603   2,640 
  $801  $2,654