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Leases (Future Minimum Rental Payments) (Details) - USD ($)
$ in Thousands
Feb. 28, 2021
Aug. 31, 2020
Leases [Abstract]    
Remainder of fiscal year 2021 $ 1,100  
Fiscal year 2022 2,085  
Fiscal year 2023 1,732  
Fiscal year 2024 1,516  
Fiscal year 2025 959  
Thereafter 2,495  
Total undiscounted future cash flows 9,887  
Less: Interest (997)  
Total operating lease liabilities $ 8,890 $ 8,360