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Other Operating Expense, Net
 6 Months Ended
Jun. 26, 2021
Other Income and Expenses [Abstract]  
Other Operating Expense, Net OTHER OPERATING EXPENSE, NET
Other operating expense, net is summarized as follows:
Three Months EndedSix Months Ended
 June 26,
2021		June 27,
2020		June 26,
2021		June 27,
2020
Other operating expense, net   
Gain on property, plant and equipment disposals$— $— $— $(37)
(Gain) loss on currency exchanges(4)57 (9)25 
Retirement expense76 49 148 31 
Miscellaneous income(39)(6)(104)(11)
Other operating expense, net$33 $100 $35 $8