Note 6 - Components of Net Periodic Cost (Benefit) Related to Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 02, 2019	Mar. 03, 2018
Pension Plan [Member] | UNITED STATES
Service cost	$ 1	$ 14
Interest cost	3,673	3,419
Expected return on assets	(6,326)	(6,541)
Prior service cost	3	7
Actuarial loss	1,169	1,475
Net periodic benefit	(1,480)	(1,626)
Pension Plan [Member] | Foreign Plan [Member]
Service cost	568	598
Interest cost	1,184	1,204
Expected return on assets	(2,587)	(2,864)
Prior service cost	16	(1)
Actuarial loss	789	749
Net periodic benefit	(30)	(314)
Other Postretirement Benefits Plan [Member]
Service cost	24	43
Interest cost	387	371
Expected return on assets	(1,753)	(1,724)
Prior service cost
Actuarial loss	8	15
Net periodic benefit	$ (1,334)	$ (1,295)