Segment Information (Schedule Of Segment Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 29, 2020	Feb. 28, 2019
Segment Reporting Information [Line Items]
Sales to External Customers	$ 53,745	$ 50,356	$ 112,357	$ 104,185
Gross Profit	38,666	35,366	80,695	72,148
Adjusted EBITDA	4,056	964	9,017	4,133
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	2,188	1,338	3,887	2,673
Gross Profit	1,267	422	2,108	878
Adjusted EBITDA	(994)	(1,888)	(2,675)	(3,722)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	5,050	2,852	11,692	7,855
Operating Segments [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	40,664	39,320	86,496	81,468
Gross Profit	30,939	29,515	65,470	59,448
Adjusted EBITDA	6,118	3,761	13,863	9,029
Operating Segments [Member] | Education Practice [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	10,893	9,698	21,974	20,044
Gross Profit	6,460	5,429	13,117	11,822
Adjusted EBITDA	(1,068)	(909)	(2,171)	(1,174)
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	37,973	36,414	80,085	74,885
Gross Profit	28,702	27,294	60,113	54,364
Adjusted EBITDA	4,734	2,543	10,444	6,183
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	2,691	2,906	6,411	6,583
Gross Profit	2,237	2,221	5,357	5,084
Adjusted EBITDA	$ 1,384	$ 1,218	$ 3,419	$ 2,846