Note 11 - Commitments and Contingencies (Tables)

12 Months Ended

Aug. 29, 2015

Commitments and Contingencies Disclosure [Abstract]

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

2016	$	8,317
2017		6,264
2018		4,671
2019		3,332
2020		3,071
Thereafter		2,591
	$	28,246

Schedule Of Environmental Liabilities [TableTextBlock]

Year ended	August 29, 2015			August 30, 2014
Beginning balance	$	19,846		$	19,680
Costs incurred for which reserves have been provided		(2,014	)		(2,913	)
Insurance proceeds		121			687
Interest accretion		603			716
Changes in discount rates		224			1,080
Revisions in estimates		4,527			596
Ending balance	$	23,307		$	19,846

Schedule Of Environmental Remediation Liabilities [Table Text Block]

(In thousands)	2016			2017			2018			2019			2020			Thereafter			Total
Estimated costs – current dollars	$	7,413		$	1,829		$	1,476		$	1,309		$	1,361		$	12,493		$	25,881
Estimated insurance proceeds		(159	)		(173	)		(159	)		(173	)		(159	)		(1,293	)		(2,116	)
Net anticipated costs	$	7,254		$	1,656		$	1,317		$	1,136		$	1,202		$	11,200		$	23,765
Effect of inflation																				7,255
Effect of discounting																				(7,713	)
Balance as of August 29, 2015																			$	23,307