Note 2 - Acquisitions - Purchase Price Allocation of Assets and Liabilities Assumed of Wisdom Adhesives (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Sep. 02, 2017	Sep. 02, 2017	Mar. 04, 2017	Jan. 27, 2017	Dec. 03, 2016
Goodwill, adjustment		$ 59,521
Goodwill	$ 444,642	444,642			$ 366,248
H. E. Wisdom & Sons, Inc. and Wisdom Adhesives Southeast, LLC [Member]
Total purchase price, adjustment
Property, plant and equipment, adjustment	(1,885)
Current assets, adjustment	(31)
Current assets	13,698	13,698	$ 13,729
Property, plant and equipment	8,631	8,631	10,516
Goodwill, adjustment	(792)
Goodwill	59,521	59,521	60,313	$ 59,521
Current liabilities, adjustment	(92)
Current liabilities	(8,245)	(8,245)	(8,153)
Total purchase price	123,305	123,305	123,305
H. E. Wisdom & Sons, Inc. and Wisdom Adhesives Southeast, LLC [Member] | Customer Relationships [Member]
Other intangibles, adjustment	12,000
Other intangibles	45,300	45,300	33,300
H. E. Wisdom & Sons, Inc. and Wisdom Adhesives Southeast, LLC [Member] | Trademarks and Trade Names [Member]
Other intangibles, adjustment	(9,200)
Other intangibles	$ 4,400	$ 4,400	$ 13,600