Note 10 - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		0 Months Ended	3 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	Sep. 02, 2013 Revere Data, LLC [Member]	Nov. 30, 2013 Revere Data, LLC [Member]	May 31, 2014 Matrix Data Limited [Member]	Feb. 28, 2014 Matrix Data Limited [Member]
Note 10 - Intangible Assets (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			11 years 36 days			5 years 73 days		5 years 146 days
Finite-lived Intangible Assets Acquired					$ 4.1	$ 4.1	$ 8.7	$ 8.7
Amortization of Intangible Assets	$ 2.4	$ 1.7	$ 6.2	$ 5.5