Segment Information (Schedule Of Revenue Disaggregated By Type Of Service) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 59,612	$ 61,336	$ 128,698	$ 129,736
Services And Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	19,331	20,606	46,032	46,696
Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	35,168	35,764	72,025	72,353
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,155	4,230	8,953	9,201
Leases And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	958	736	1,688	1,486
Operating Segments [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	43,551	45,598	95,130	98,044
Operating Segments [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	15,065	14,689	31,529	29,580
Operating Segments [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,201	7,263	14,440	15,993
Operating Segments [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,830	2,781	6,033	6,204
Operating Segments [Member] \| Services And Products [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	15,726	16,674	37,680	39,030
Operating Segments [Member] \| Services And Products [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,605	3,932	8,352	7,666
Operating Segments [Member] \| Services And Products [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,705	4,634	9,331	10,963
Operating Segments [Member] \| Services And Products [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	68	86	130	316
Operating Segments [Member] \| Subscriptions [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	25,078	26,256	51,465	53,088
Operating Segments [Member] \| Subscriptions [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	10,090	9,508	20,560	19,265
Operating Segments [Member] \| Subscriptions [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,460	2,596	5,031	4,953
Operating Segments [Member] \| Subscriptions [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	336	324	615	657
Operating Segments [Member] \| Royalties [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,747	2,668	5,985	5,926
Operating Segments [Member] \| Royalties [Member] \| Education Practice [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,370	1,249	2,617	2,649
Operating Segments [Member] \| Royalties [Member] \| Direct Offices [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	36	33	78	77
Operating Segments [Member] \| Royalties [Member] \| International Licensees [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,426	2,371	5,288	5,231
Corporate And Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	996	1,049	2,039	2,112
Corporate And Eliminations [Member] \| Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	38	313	351	626
Corporate And Eliminations [Member] \| Leases And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	958	736	1,688	1,486
North America [Member] \| Operating Segments [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	34,520	35,554	74,657	75,847
North America [Member] \| Operating Segments [Member] \| Services And Products [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	11,953	11,954	28,219	27,751
North America [Member] \| Operating Segments [Member] \| Subscriptions [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	22,282	23,336	45,819	47,478
North America [Member] \| Operating Segments [Member] \| Royalties [Member] \| Enterprise Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 285	$ 264	$ 619	$ 618