Note 14 - Accumulated Other Comprehensive (Loss) Income - Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Feb. 25, 2017	Feb. 27, 2016	Feb. 25, 2017	Feb. 27, 2016
Amounts reclassified from accumulated other comprehensive (loss) income		$ (27)	$ (93)	$ (103)	$ (122)
Forward Contracts [Member]
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(27)	(93)	(103)	(165)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive (loss) income	[2]	0			43
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive (loss) income		$ (27)	$ (93)	$ (103)	$ (165)

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

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