Segment Information (Schedule Of Segment Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Segment Reporting Information [Line Items]
Sales to External Customers	$ 48,162	$ 53,745	$ 96,486	$ 112,357
Gross Profit	37,340	38,666	73,726	80,695
Adjusted EBITDA	5,123	4,056	8,839	9,017
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	1,517	2,188	3,004	3,887
Gross Profit	812	1,267	1,487	2,108
Adjusted EBITDA	(1,655)	(994)	(3,641)	(2,675)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	6,778	5,050	12,480	11,692
Operating Segments [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	38,167	40,664	77,507	86,496
Gross Profit	31,184	30,939	62,908	65,470
Adjusted EBITDA	7,636	6,118	15,622	13,863
Operating Segments [Member] | Education Practice [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	8,478	10,893	15,975	21,974
Gross Profit	5,344	6,460	9,331	13,117
Adjusted EBITDA	(858)	(1,068)	(3,142)	(2,171)
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	35,738	37,973	72,481	80,085
Gross Profit	29,084	28,702	58,523	60,113
Adjusted EBITDA	6,131	4,734	12,827	10,444
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	2,429	2,691	5,026	6,411
Gross Profit	2,100	2,237	4,385	5,357
Adjusted EBITDA	$ 1,505	$ 1,384	$ 2,795	$ 3,419