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Receivables, Net (Tables)
 9 Months Ended
Sep. 26, 2020
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Receivables are summarized as follows:
September 26,
2020		December 28,
2019
Customers, trade$37,696 $34,285 
Other receivables1,221 3,115 
Gross receivables38,917 37,400 
Less: allowance for doubtful accounts(199)(262)
Receivables, net$38,718 $37,138