XML 32 R21.htm IDEA: XBRL DOCUMENT v3.6.0.2
Inventories (Tables)
 6 Months Ended
Jan. 31, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:

   January 31,
2017		   July 31,
2016		 
Raw materials  $912   $951 
Work in process   1,893    1,755 
Finished products   4,310    4,265 
   $7,115   $6,971