Note 9 - Accrued Liabilities (Tables)

12 Months Ended

Aug. 29, 2015

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	August 29, 2015		August 30, 2014
Current liabilities:
Payroll and benefit related	$	48,932	$	48,978
Insurance related		40,123		37,683
Environmental related		7,254		5,046
Other		16,713		9,111
	$	113,022	$	100,818
Long-term liabilities:
Benefit related	$	26,132	$	23,760
Environmental related		16,053		14,800
Asset retirement obligations		12,381		11,675
	$	54,566	$	50,235
Total accrued liabilities	$	167,588	$	151,053