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Revenue (Narrative) (Details)
3 Months Ended 12 Months Ended
Nov. 27, 2021
USD ($)
segment
Aug. 28, 2021
USD ($)
May 29, 2021
USD ($)
Aug. 29, 2020
USD ($)
Accrued sales returns $ 6,293,000 $ 5,759,000    
Accrued sales incentives 16,962,000 16,844,000    
Prepaid sales incentives 2,316,000 2,547,000    
Performance obligation 0 0    
Contract assets $ 0 $ 0    
Contract liabilities     $ 0 $ 0
Number of operating segments | segment 1      
Number of reportable segments | segment 1      
Maximum [Member]        
Payment term 1 year