Note 8 - Business Combinations (Details) - Purchase Price Allocation (USD $) In Thousands, unless otherwise specified	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012	May 31, 2014 Data Content [Member] Revere Data, LLC [Member]	May 31, 2014 Data Content [Member] Matrix Data Limited [Member]	May 31, 2014 Client Relationships [Member] Revere Data, LLC [Member]	May 31, 2014 Client Relationships [Member] Matrix Data Limited [Member]	May 31, 2014 Non-Compete Agreements [Member] Revere Data, LLC [Member]	May 31, 2014 Non-Compete Agreements [Member] Matrix Data Limited [Member]	May 31, 2014 Trade Names [Member] Revere Data, LLC [Member]	May 31, 2014 Trade Names [Member] Matrix Data Limited [Member]	May 31, 2014 Software Technology [Member] Matrix Data Limited [Member]	May 31, 2014 Revere Data, LLC [Member]	May 31, 2014 Matrix Data Limited [Member]
Note 8 - Business Combinations (Details) - Purchase Price Allocation [Line Items]
Tangible assets acquired													$ 544	$ 7,459
Goodwill	285,608	244,573	245,791										11,612	25,531
Total assets acquired													16,237	41,739
Liabilities assumed													(949)	(9,941)
Net assets acquired													15,288	31,798
Amortizable Intangible Assets				$ 2,799	$ 3,408	$ 827	$ 2,816	$ 162	$ 147	$ 293	$ 670	$ 1,708