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Long-Term Debt (Schedule of Principal Payments Due on Long-Term Debt) (Details) - USD ($)
$ in Thousands
Nov. 30, 2020
Aug. 31, 2020
Nov. 30, 2019
Debt Disclosure [Abstract]      
1 year $ 214    
2 years 218    
3 years 222    
4 years 227    
5 years 231    
Thereafter 115,197    
Total debt $ 116,309 $ 116,344 $ 116,519