Intangible Assets And Goodwill (Schedule Of Acquired Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	$ 3,989
Internally Developed Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	2,049
Estimated Useful Life	3 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	1,574
Estimated Useful Life	5 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	242
Estimated Useful Life	5 years
Non-compete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	$ 124
Estimated Useful Life	5 years