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Revenue (Narrative) (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2019 USD ($) segment	Sep. 01, 2018 USD ($)
Accrued sales returns	$ 5,432	$ 4,832
Accrued sales incentives	14,770	14,000
Prepaid sales incentives	2,788	2,457
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

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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