Note 7 - Business Combinations (Details) (USD $)	1 Months Ended	12 Months Ended
	Jun. 29, 2012	Aug. 31, 2013	Aug. 31, 2012
Note 7 - Business Combinations (Details) [Line Items]
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period (in Dollars)	$ 11,400,000
Entity Number of Employees		6,258
Finite-lived Intangible Assets Acquired (in Dollars)	6,400,000	0	6,357,000
StreetAccount [Member]
Note 7 - Business Combinations (Details) [Line Items]
Entity Number of Employees	49
Business Acquisition, Purchase Price Allocation, Goodwill Amount (in Dollars)		21,997,000
Customer Relationships [Member]
Note 7 - Business Combinations (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Software Technology [Member]
Note 7 - Business Combinations (Details) [Line Items]
Finite-lived Intangible Assets Acquired (in Dollars)			2,332,000
Finite-Lived Intangible Asset, Useful Life	5 years
Data Content [Member]
Note 7 - Business Combinations (Details) [Line Items]
Finite-lived Intangible Assets Acquired (in Dollars)			613,000
Finite-Lived Intangible Asset, Useful Life	3 years
Noncompete Agreements [Member]
Note 7 - Business Combinations (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years
Trade Names [Member]
Note 7 - Business Combinations (Details) [Line Items]
Finite-lived Intangible Assets Acquired (in Dollars)			$ 186,000
Finite-Lived Intangible Asset, Useful Life	2 years