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Note 9 - Asset Retirement Obligations (Tables)
 3 Months Ended
Nov. 28, 2015
Notes Tables  
Schedule of Asset Retirement Obligations [Table Text Block]
 
 
November 28,
2015
 
Beginning balance as of August 29, 2015
   $ 12,381  
Accretion expense
     199  
Effect of exchange rate changes
     (179
)
Asset retirement liabilities settled
     (144
)
Ending balance as of November 28, 2015
   $ 12,257