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Revenue (Narrative) (Details)
9 Months Ended 12 Months Ended
May 29, 2021
USD ($)
segment
Aug. 29, 2020
USD ($)
Accrued sales returns $ 5,452,000 $ 5,315,000
Accrued sales incentives 18,506,000 19,679,000
Prepaid sales incentives 3,042,000 3,762,000
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