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Note 12 - Guarantees (Tables)
6 Months Ended
Jun. 27, 2020
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
  

Three Months Ended

  

Six Months Ended

 
  

June 27,

  

June 29,

  

June 27,

  

June 29,

 
  

2020

  

2019

  

2020

  

2019

 

Balance at beginning of period

 $6,268  $7,088  $6,155  $8,014 

Warranty expense accruals

  1,044   1,830   2,935   3,558 

Warranty payments

  (1,316)  (2,066)  (3,094)  (4,720)

Balance at end of period

 $5,996  $6,852  $5,996  $6,852