Nature Of Operations And Summary Of Significant Accounting Policies (Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2014	Aug. 31, 2013
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]
Unearned revenue	$ 10,350	$ 7,063
Accrued compensation	10,336	11,804
Intellectual property royalties	1,468	1,866
NinetyFive 5 acquisition payable		2,250
Other accrued liabilities	7,432	8,157
Accrued liabilities	$ 29,586	$ 31,140