Note 9 - Commitments and Contingencies (Tables)

9 Months Ended

May 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Environmental Liabilities [TableTextBlock]

	May 31, 2014
Beginning balance as of August 31, 2013	$	19,680
Payments made for which reserves had been provided		(1,460	)
Insurance proceeds received		631
Interest accretion		537
Revision in estimates		(21	)
Change in discount rates		647
Balance as of May 31, 2014	$	20,014

Schedule Of Environmental Remediation Liabilities [Table Text Block]

(In thousands)	2014		2015			2016			2017			2018			Thereafter			Total
Estimated costs – current dollars	$	4,308	$	2,620		$	1,887		$	865		$	797		$	12,421		$	22,898
Estimated insurance proceeds		—		(173	)		(159	)		(173	)		(159	)		(1,592	)		(2,256	)
Net anticipated costs	$	4,308	$	2,447		$	1,728		$	692		$	638		$	10,829		$	20,642
Effect of inflation																			7,591
Effect of discounting																			(8,219	)
Balance as of May 31, 2014																		$	20,014