Segment Information (Schedule Of Segment Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018
Segment Reporting Information [Line Items]
Sales to External Customers	$ 50,356	$ 46,547	$ 104,185	$ 94,479
Gross Profit	35,366	32,744	72,148	65,612
Adjusted EBITDA	964	(668)	4,133	(66)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	2,852	1,342	7,855	4,302
Operating Segments [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	39,320	36,321	81,468	73,837
Gross Profit	29,515	27,245	59,448	54,308
Adjusted EBITDA	3,761	2,493	9,029	6,295
Operating Segments [Member] | Education Practice [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	9,698	9,007	20,044	18,183
Gross Profit	5,429	5,163	11,822	10,593
Adjusted EBITDA	(909)	(1,151)	(1,174)	(1,993)
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	36,414	33,275	74,885	67,471
Gross Profit	27,294	24,881	54,364	49,442
Adjusted EBITDA	2,543	1,331	6,183	3,723
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	2,906	3,046	6,583	6,366
Gross Profit	2,221	2,364	5,084	4,866
Adjusted EBITDA	1,218	1,162	2,846	2,572
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	1,338	1,219	2,673	2,459
Gross Profit	422	336	878	711
Adjusted EBITDA	$ (1,888)	$ (2,010)	$ (3,722)	$ (4,368)