Note 10 - Commitments and Contingencies (Tables)

12 Months Ended

Aug. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

2015	$	7,720
2016		6,151
2017		4,498
2018		2,897
2019		1,689
Thereafter		1,722
	$	24,677

Schedule Of Environmental Liabilities [TableTextBlock]

Year ended	August 30, 2014			August 31, 2013
Beginning balance	$	19,680		$	20,020
Costs incurred for which reserves have been provided		(2,913	)		(1,862	)
Insurance proceeds		687			282
Interest accretion		716			542
Changes in discount rates		1,080			(1,585	)
Revisions in estimates		596			2,283
Ending balance	$	19,846		$	19,680

Schedule Of Environmental Remediation Liabilities [Table Text Block]

(In thousands)	2015			2016			2017			2018			2019			Thereafter			Total
Estimated costs – current dollars	$	5,219		$	1,915		$	1,663		$	745		$	863		$	12,407		$	22,812
Estimated insurance proceeds		(173	)		(159	)		(173	)		(159	)		(173	)		(1,430	)		(2,267	)
Net anticipated costs	$	5,046		$	1,756		$	1,490		$	586		$	690		$	10,977		$	20,545
Effect of inflation																				7,075
Effect of discounting																				(7,774	)
Balance as of August 30, 2014																			$	19,846