Note 2 - Acquisitions and Divestitures - Purchase Price Allocation of Assets and Liabilities Assumed of Tonsan Adhesive (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 28, 2015	Feb. 28, 2015
Tonsan Adhesive [Member] | Intellectual Property [Member]
Other intangibles		$ 18,600	$ 18,500
Other inangibles		100
Tonsan Adhesive [Member] | Customer Relationships [Member]
Other intangibles		25,700	12,400
Other inangibles		13,300
Tonsan Adhesive [Member] | Trademarks and Trade Names [Member]
Other intangibles		11,000	10,900
Other inangibles		100
Tonsan Adhesive [Member]
Current assets		49,839	50,922
Current assets		(1,083)
Property, plant and equipment		59,142	58,549
Property, plant and equipment		593
Goodwill	[1]	125,090	155,232
Goodwill 1	[1]	(30,142)
Other assets		13,540	139
Other assets		13,401
Current liabilities		(38,068)	(30,590)
Current liabilities		(7,478)
Other liabilities	[1]	(37,145)	(49,497)
Other liabilities 1	[1]	12,352
Redeemable non-controlling interests		(11,773)	(10,630)
Redeemable non-controlling interests		(1,143)
Total purchase price		215,925	$ 215,925
Goodwill		$ 354,204

[1] Included in the current quarter fair value adjustment is the correction of an error related to the valuation of the contingent consideration of $9,572.