Note 6 - Segment Information (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Note 6 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	$ 244,573	$ 245,791	$ 228,265
United States [Member]
Note 6 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	167,822	167,817	145,826
Goodwill Percentage Per Segment	69.00%
European Union [Member]
Note 6 - Segment Information (Details) [Line Items]
Goodwill Percentage Per Segment	30.00%
Asia Pacific [Member]
Note 6 - Segment Information (Details) [Line Items]
Goodwill (in Dollars)	$ 3,327	$ 4,168	$ 4,267
Goodwill Percentage Per Segment	1.00%