Note 4 - Supplemental Financial Statement Information - Statement of Income Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 02, 2017	Dec. 03, 2016	Nov. 28, 2015
Foreign currency transaction losses, net	$ (2,411)	$ (9,510)	$ (3,549)
Interest income	3,927	2,045	510
Gain (loss) on disposal of fixed assets	22	(796)	330
Other, net 1	(25,278)	712	244
Total other income (expense), net	(23,740)	(7,549)	(2,465)
Selling, General and Administrative Expenses [Member]
Research and development expenses (included in SG&A expenses)	$ 30,072	$ 28,614	$ 26,170