Note 14 - Operating Segments - Financial Information About Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 03, 2016	Aug. 27, 2016	May 29, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Feb. 28, 2015	Dec. 03, 2016	Nov. 28, 2015	Nov. 29, 2014
Sales revenue	$ 574,907	$ 512,858	$ 532,514	$ 474,326	$ 548,104	$ 524,133	$ 540,762	$ 470,661	$ 2,094,605	$ 2,083,660	$ 2,104,454
Property, plant and equipment, net	515,275				512,860				515,275	512,860	502,634
UNITED STATES
Sales revenue									869,919	891,436	878,058
Property, plant and equipment, net	202,944				193,819				202,944	193,819	205,412
CHINA
Sales revenue									257,779	226,335
Property, plant and equipment, net	83,548				94,763				83,548	94,763	40,748
GERMANY
Property, plant and equipment, net	99,229				101,013				99,229	101,013	116,301
Countries with More Than 10 Percent of Total [Member]
Sales revenue									1,127,698	1,117,771
All Other Countries with Less than 10 Percent of Total [Member]
Sales revenue									966,907	965,889	1,226,396
Property, plant and equipment, net	$ 129,554				$ 123,265				$ 129,554	$ 123,265	$ 140,173