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Note 6 - Acquisitions (Tables)
3 Months Ended
Apr. 03, 2021
Notes Tables  
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]
Fiscal Year Ending
 
Total
 
January 1, 2022 (after April 3, 2021)
  $
520
 
December 31, 2022
   
2,364
 
Estimated future contingent consideration payments
  $
2,884