Segment Information (Schedule Of Segment Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Segment Reporting Information [Line Items]
Sales to External Customers	$ 198,456	$ 225,356	$ 209,758
Gross Profit	145,370	159,314	148,289
Adjusted EBITDA	14,284	20,606	11,878
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	20,010	29,080	21,045
Operating Segments [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	148,231	170,650	159,116
Gross Profit	114,823	126,986	118,171
Adjusted EBITDA	20,100	25,527	18,335
Operating Segments [Member] | Education Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	43,405	48,880	45,272
Gross Profit	27,099	30,373	28,654
Adjusted EBITDA	(90)	3,553	2,710
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	139,780	157,754	145,890
Gross Profit	108,144	116,755	108,140
Adjusted EBITDA	17,694	19,455	13,254
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	8,451	12,896	13,226
Gross Profit	6,679	10,231	10,031
Adjusted EBITDA	2,406	6,072	5,081
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Sales to External Customers	6,820	5,826	5,370
Gross Profit	3,448	1,955	1,464
Adjusted EBITDA	$ (5,726)	$ (8,474)	$ (9,167)