Note 5 - Goodwill and Other Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 03, 2017	Dec. 03, 2016
Original cost	$ 425,182	$ 372,949
Accumulated amortization	(186,335)	(168,057)
Net identifiable intangibles	238,847	204,892
Purchased Technology And Patents [Member]
Original cost	70,651	70,504
Accumulated amortization	(29,189)	(21,448)
Net identifiable intangibles	41,462	49,056
Customer Relationships [Member]
Original cost	289,181	251,329
Accumulated amortization	(123,054)	(116,411)
Net identifiable intangibles	166,127	134,918
Other Intangible Assets [Member]
Original cost	65,350	51,116
Accumulated amortization	(34,092)	(30,198)
Net identifiable intangibles	$ 31,258	$ 20,918