Note 11 - Accumulated Other Comprehensive Income (Loss) - Activity in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 25, 2023	Nov. 26, 2022	Nov. 27, 2021
Balance	$ 195,609	$ 162,732	$ 158,030
Foreign currency translation adjustment	(378)	(274)	0
Balance	183,441	195,609	162,732
AOCI Attributable to Parent [Member]
Balance	50	(1,823)	(1,394)
Actuarial losses	424	2,503
Net pension amortization reclassified from accumulated other comprehensive loss	119	256
Foreign currency translation adjustment	(378)	(272)
Tax effects	(63)	(614)
Balance	$ 152	$ 50	$ (1,823)