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Segment Information (Schedule Of Revenue Disaggregate By Activities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Disaggregation of Revenue [Line Items]      
Revenue $ 224,168 $ 198,456 $ 225,356
Services And Products [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 104,943 92,098 128,775
Subscriptions [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 99,531 86,541 74,687
Royalties [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 14,468 14,982 16,068
Leases And Other [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 5,226 4,835 5,826
Operating Segments [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 168,644 148,231 170,650
Operating Segments [Member] | Education Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 48,902 43,405 48,880
Operating Segments [Member] | Direct Offices [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 159,608 139,780 157,754
Operating Segments [Member] | International Licensees [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 9,036 8,451 12,896
Operating Segments [Member] | Services And Products [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 85,196 76,991 104,996
Operating Segments [Member] | Services And Products [Member] | Education Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 19,747 15,107 23,779
Operating Segments [Member] | Services And Products [Member] | Direct Offices [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 84,111 75,580 102,557
Operating Segments [Member] | Services And Products [Member] | International Licensees [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 1,085 1,411 2,439
Operating Segments [Member] | Subscriptions [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 72,789 60,954 52,536
Operating Segments [Member] | Subscriptions [Member] | Education Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 26,742 25,587 22,151
Operating Segments [Member] | Subscriptions [Member] | Direct Offices [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 72,789 60,954 52,536
Operating Segments [Member] | Royalties [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 10,659 10,286 13,118
Operating Segments [Member] | Royalties [Member] | Education Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 2,413 2,711 2,950
Operating Segments [Member] | Royalties [Member] | Direct Offices [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 2,708 3,246 2,661
Operating Segments [Member] | Royalties [Member] | International Licensees [Member] | Enterprise Division [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 7,951 7,040 10,457
Corporate And Eliminations [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 6,622 6,820 5,826
Corporate And Eliminations [Member] | Royalties [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 1,396 1,985  
Corporate And Eliminations [Member] | Leases And Other [Member]      
Disaggregation of Revenue [Line Items]      
Revenue $ 5,226 $ 4,835 $ 5,826