Nature Of Operations And Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Capitalized development costs, amortization period	5 years
Capitalized development costs	$ 7,400,000	$ 6,700,000
Foreign currency transaction gains (losses)	200,000	(100,000)	14,000
Licensee royalty revenue	12,900,000	11,800,000	10,600,000
Advertising costs	7,000,000	5,300,000	3,100,000
Direct response advertising costs	100,000	200,000
Percent likelihood of being realized upon ultimate settlement	50.00%
Goodwill, Impairment Loss
Minimum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Direct response advertising costs, amortization period	3 months
Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Direct response advertising costs, amortization period	12 months