Note 13 - Accumulated Other Comprehensive (Loss) Income (Details) - Amounts Reclassified from Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Feb. 28, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial Losses	$ 151
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial Losses	151	[1]
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial Losses	$ 151

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