Note 2 - Interim Financial Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Aug. 27, 2022	Aug. 28, 2021	Aug. 27, 2022	Aug. 27, 2022	Aug. 28, 2021
Effective Income Tax Rate Reconciliation, Percent, Total	22.80%	27.20%		25.60%	27.30%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%
Effective Income Tax Rate Reconciliation, Impairment of Non-deductible Goodwill			$ 552
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount					$ 117
Income Taxes Paid, Net, Total				$ 20,722	$ 624