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. 30, 2024	Dec. 02, 2023	Dec. 03, 2022
Net income attributable to H.B. Fuller	$ 130,256	$ 144,906	$ 180,313
Weighted-average common shares – basic (in shares)	54,932	54,332	53,580
Equivalent shares from share-based compensation plans (in shares)	1,697	1,626	1,689
Weighted-average common and common equivalent shares – diluted (in shares)	56,629	55,958	55,269
Basic earnings per share (in dollars per share)	$ 2.37	$ 2.67	$ 3.37
Diluted earnings per share (in dollars per share)	$ 2.3	$ 2.59	$ 3.26