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Intangible Assets And Goodwill (Schedule Of Allocated Goodwill To Reportable Operating Segments) (Details) - USD ($)
$ in Thousands
Aug. 31, 2021
Apr. 26, 2021
Aug. 31, 2020
Goodwill [Line Items]      
Goodwill $ 31,220   $ 24,220
Direct Offices [Member]      
Goodwill [Line Items]      
Goodwill 22,962   16,825
International Licensees [Member]      
Goodwill [Line Items]      
Goodwill 5,928   5,065
Education Division [Member]      
Goodwill [Line Items]      
Goodwill 2,330   $ 2,330
Strive [Member]      
Goodwill [Line Items]      
Goodwill 7,000 $ 7,000  
Strive [Member] | Direct Offices [Member]      
Goodwill [Line Items]      
Goodwill 6,137    
Strive [Member] | International Licensees [Member]      
Goodwill [Line Items]      
Goodwill $ 863