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Note 9 - Asset Retirement Obligations (Tables)
 6 Months Ended
Feb. 27, 2016
Notes Tables  
Schedule of Asset Retirement Obligations [Table Text Block]
 
 
February 27,
2016
 
Beginning balance as of August 29, 2015
   $ 12,381  
Accretion expense
     398  
Effect of exchange rate changes
     (120
)
Asset retirement liabilities settled
     (269
)
Ending balance as of February 27, 2016
   $ 12,390