Note 8 - Accrued Liabilities (Tables)

12 Months Ended

Aug. 30, 2014

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	August 30, 2014		August 31, 2013
Current liabilities:
Payroll and benefit related	$	48,978	$	47,361
Insurance related		37,683		36,095
Environmental related		5,046		5,158
Other		9,111		6,968
	$	100,818	$	95,582
Long-term liabilities:
Benefit related	$	23,760	$	19,719
Environmental related		14,800		14,522
Asset retirement obligations		11,675		10,796
	$	50,235	$	45,037
Total accrued liabilities	$	151,053	$	140,619