Segment Information (Schedule Of Revenue Disaggregated By Type Of Service) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 61,336	$ 61,756	$ 129,736	$ 131,125
Services And Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	20,606	23,239	46,696	54,099
Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	35,764	32,914	72,353	65,940
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,230	4,934	9,201	9,159
Leases And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	736	669	1,486	1,927
Operating Segments [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	45,708	46,581	98,301	100,025
Operating Segments [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	14,579	14,198	29,323	28,549
Operating Segments [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	42,960	43,646	92,175	93,812
Operating Segments [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,748	2,935	6,126	6,213
Operating Segments [Member] \| Services And Products [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	16,674	19,129	39,030	45,489
Operating Segments [Member] \| Services And Products [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,932	4,110	7,666	8,610
Operating Segments [Member] \| Services And Products [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	16,589	19,086	38,714	45,303
Operating Segments [Member] \| Services And Products [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	85	43	316	186
Operating Segments [Member] \| Subscriptions [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	26,256	24,054	53,088	47,896
Operating Segments [Member] \| Subscriptions [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,508	8,860	19,265	18,044
Operating Segments [Member] \| Subscriptions [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	25,932	23,711	52,431	47,201
Operating Segments [Member] \| Subscriptions [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	324	343	657	695
Operating Segments [Member] \| Royalties [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,778	3,398	6,183	6,640
Operating Segments [Member] \| Royalties [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,139	1,228	2,392	1,895
Operating Segments [Member] \| Royalties [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	439	849	1,030	1,308
Operating Segments [Member] \| Royalties [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,339	2,549	5,153	5,332
Corporate And Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,049	977	2,112	2,551
Corporate And Eliminations [Member] \| Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	313	308	626	624
Corporate And Eliminations [Member] \| Leases And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 736	$ 669	$ 1,486	$ 1,927