Note 14 - Accumulated Other Comprehensive (Loss) Income - Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Nov. 26, 2016	Nov. 28, 2015
Amounts reclassified from accumulated other comprehensive (loss) income		$ (76)	$ (29)
Forward Contracts [Member]
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(76)	(72)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive (loss) income		0	43	[2]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive (loss) income	[3]		43
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Amounts reclassified from accumulated other comprehensive (loss) income		$ (76)	$ (72)

[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.

[3] Amounts are shown net of tax