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Leases (Future Minimum Rental Payments) (Details) - USD ($)
$ in Thousands
May 31, 2021
Aug. 31, 2020
Leases [Abstract]    
Remainder of fiscal year 2021 $ 554  
Fiscal year 2022 2,119  
Fiscal year 2023 1,765  
Fiscal year 2024 1,541  
Fiscal year 2025 973  
Thereafter 3,434  
Total undiscounted future cash flows 10,386  
Less: Interest (1,086)  
Total operating lease liabilities $ 9,300 $ 8,360