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Fair Value Of Financial Instruments (Schedule Of Contingent Consideration Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Business Acquisition, Contingent Consideration [Line Items]      
Contingent Liability at beginning $ 3,883    
Change in fair value 193 $ (49) $ 1,334
Payments (1,981)    
Contingent Liability at ending 2,095 3,883  
Jhana [Member]      
Business Acquisition, Contingent Consideration [Line Items]      
Contingent Liability at beginning 3,067    
Change in fair value 177    
Payments (1,149)    
Contingent Liability at ending 2,095 3,067  
RGP [Member]      
Business Acquisition, Contingent Consideration [Line Items]      
Contingent Liability at beginning 816    
Change in fair value 16    
Payments $ (832)    
Contingent Liability at ending   $ 816