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Commitments And Contingencies (Tables)
 3 Months Ended
Mar. 29, 2020
Commitments and Contingencies Disclosure [Abstract]  
Schedule Of Changes In Carrying Amount Of Warranty Liabilities
The changes in the carrying amount of warranty liabilities for the three-month periods ended March 29, 2020, and March 31, 2019, were as follows:
Three Months Ended
March 29, 2020
 
March 31, 2019
Beginning balance
$
619

 
$
480

Warranty expense
26

 
27

Payments
(12
)
 
(24
)
Adjustments
—

 
(1
)
Ending balance
$
633

 
$
482