Note 6 - Leases - Supplemental Balance Sheet Information (Details) $ in Thousands	Aug. 29, 2020 USD ($)
Current operating lease liabilities	$ 8,832
Noncurrent operating lease liabilities	17,860
Total operating lease liabilities	26,692
Other Noncurrent Assets [Member]
Operating lease right-of-use assets	26,817
Other Accrued Expenses [Member]
Current operating lease liabilities	8,832
Other Noncurrent Liabilities [Member]
Noncurrent operating lease liabilities	$ 17,860