Note 16 - Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 31, 2013 sqm sqft	Aug. 31, 2012	Aug. 31, 2011
Note 16 - Commitments and Contingencies (Details) [Line Items]
Area of Real Estate Property (in Square Feet)	809,000
Area of Real Estate Increase (Decrease) (in Square Meters)	2,000
Area of Real Estate Increase (Decrease) Percent	0.30%
Operating Leases, Rent Expense	$ 36.2	$ 34.6	$ 32.8
Line of Credit Facility, Amount Outstanding	2.2
Long-term Purchase Commitment, Amount	$ 50.2	$ 52.2
Norwalk, Connecticut [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Area of Real Estate Property (in Square Feet)	193,000