Note 10 - Asset Retirement Obligations (Tables)

12 Months Ended

Aug. 31, 2013

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Asset Retirement Obligations [Table Text Block]

	August 31, 2013		August 25, 2012
Beginning balance	$	10,120	$	9,488
Accretion expense		676		632
Ending balance	$	10,796	$	10,120