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Inventories (Tables)
3 Months Ended
Mar. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
          March 30, 2019     December 29, 2018  
          $     $  
Raw materials and work-in-process   269,298     278,038  
Finished goods   67,984     83,225  
Company-owned grain   -     10,155  
Inventory reserves   (7,352 )   (9,461 )
          329,930     361,957