Note 11 - Capital Stock and Stock Compensation - Compensation Expense Related to Restricted Stock and Stock Options Included in Selling, General and Administrative Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
Selling, General and Administrative Expenses [Member]
Stock based compensation expense	$ 158	$ 420	$ 958