Note 1 - Nature of Business and Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
Net income attributable to H.B. Fuller	$ 161,393	$ 123,719	$ 130,817
Weighted-average common shares – basic (in shares)	52,887	52,039	50,920
Equivalent shares from share-based compensation plans (in shares)	1,428	481	1,063
Weighted-average common and common equivalent shares – diluted (in shares)	54,315	52,520	51,983
Basic earnings per share (in dollars per share)	$ 3.05	$ 2.38	$ 2.57
Diluted earnings per share (in dollars per share)	$ 2.97	$ 2.36	$ 2.52