Note 12 - Benefit Plans (Details) - Components of Net Periodic Benefit Cost (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Components of net periodic benefit cost:
Service cost		$ 1,344	$ 1,201
Interest cost		4,941	5,606
Total cost of the plan for the year		800	5,400	500
Total (income) expense for the year	5,300		5,100
United States Pension Plan of US Entity, Defined Benefit [Member]
Components of net periodic benefit cost:
Service cost		600	600	560
Interest cost		3,565	4,962	5,110
Expected return on plan assets		(5,360)	(6,620)	(6,518)
Amortization of losses (gains)		942	338	748
Total cost of the plan for the year		(253)	(720)	(100)
Expected plan participants’ contributions		0	0	0
Net periodic benefit (credit) cost		(253)	(720)	(100)
Settlement loss			5,098
Total (income) expense for the year		(253)	4,378	(100)
Foreign Pension Plan, Defined Benefit [Member]
Components of net periodic benefit cost:
Service cost		744	601	429
Interest cost		1,376	644	632
Expected return on plan assets		(1,207)	(480)	(507)
Amortization of prior service (credit)			(1)	(1)
Amortization of losses (gains)		130	63	25
Total cost of the plan for the year		1,043	827	578
Expected plan participants’ contributions		0	0	0
Net periodic benefit (credit) cost		1,043	827	578
Settlement loss			188	11
Total (income) expense for the year		$ 1,043	$ 1,015	$ 589