Note 13 - Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Feb. 27, 2016		Feb. 28, 2015	Feb. 27, 2016		Feb. 28, 2015
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive loss				$ 43	[1]	$ 151
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive loss				43		$ 151
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive loss	$ (93)			(165)
Forward Contracts [Member]
Amounts reclassified from accumulated other comprehensive loss	(93)	[2]		(165)	[2]
Amounts reclassified from accumulated other comprehensive loss	$ (93)			$ (122)		$ 151

[1] Amounts included in selling and administrative expenses in the accompanying Consolidated Statements of Income.

[2] Amounts included in revenues in the accompanying Consolidated Statements of Income.