Note 11 - Pensions (Details) - Components of Net Periodic Benefit Cost (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 150	$ 150	$ 300	$ 300
Interest cost	892	1,241	1,783	2,481
Expected return on plan assetsassets	(1,340)	(1,655)	(2,680)	(3,310)
Amortization of net loss	235	84	471	169
Total cost (credit) of the plan	(63)	(180)	(126)	(360)
Net periodic benefit cost (credit)	(63)	(180)	(126)	(360)
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	268	191	523	383
Interest cost	299	196	482	391
Expected return on plan assetsassets	(197)	(121)	(271)	(242)
Amortization of net loss	38	17	77	34
Total cost (credit) of the plan	408	283	811	566
Net periodic benefit cost (credit)	$ 408	$ 283	$ 811	$ 566