Note 1 - Nature of Business and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Nov. 29, 2025 USD ($) shares	Dec. 02, 2024 shares	Nov. 30, 2024 USD ($) shares	Dec. 02, 2023 USD ($) shares
Number of Countries in which Entity Operates	34
Number of Reportable Segments	3
Contract with Customers, Net Revenue Reduction, Customer Incentives	$ 37,941		$ 43,548	$ 35,896
Cash Surrender Value of Life Insurance	10,388		9,814
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount			1,966
Equity Securities without Readily Determinable Fair Value, Amount	3,574		1,023
Interest Costs Capitalized	562		1,859	$ 1,769
Asset Retirement Obligations, Noncurrent	$ 3,155		$ 3,321
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	2,119,140		853,398	1,089,054
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) | shares	56,228	113,868	93,102	113,868
Stock Repurchased During Period, Shares (in shares) | shares	977,537		407,400	0
Supplier Finance Program, Obligation	$ 7,379		$ 5,180
Proceeds from Insurance Settlement, Investing Activities	$ 0		4,871	$ 0
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]	Accounts Payable, Current
Fire and Freezing Weather Claims [Member]
Proceeds from Insurance Settlement, Investing Activities			$ 2,393
Defined Benefit Plan, Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	55.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	45.00%
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	20 years
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	20 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	20 years
Sekisui Fuller Company Ltd [Member]
Equity Method Investment, Ownership Percentage	50.00%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Hygiene, Health, and Consumable Adhesives [Member]
Concentration Risk, Percentage	45.00%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Engineering Adhesives [Member]
Concentration Risk, Percentage	30.00%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Building Adhesives Solutions [Member]
Concentration Risk, Percentage	25.00%