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Inventories (Tables)
 6 Months Ended
Jan. 29, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
 
January 29,
2017
 
July 31,
2016
Raw materials, containers and supplies
$
373

 
$
391

Finished products
447

 
549

 
$
820

 
$
940