Note 15 - Business Unit Segment Information (Details) - Revenues and Long-lived Assets by Geographical Area (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Net sales
Net sales	$ 757,853	$ 667,913	$ 664,955
Long-lived assets
Long-lived assets	150,173	120,911	118,884
Americas [Member]
Net sales
Net sales	274,666	222,530	223,701
Long-lived assets
Long-lived assets	27,294	14,433	15,814
Europe [Member]
Net sales
Net sales	158,494	142,553	148,717
Long-lived assets
Long-lived assets	45,843	41,504	43,386
Asia Pacific [Member]
Net sales
Net sales	324,693	302,830	292,537
Long-lived assets
Long-lived assets	62,607	51,135	47,889
Canada [Member]
Long-lived assets
Long-lived assets	$ 14,429	$ 13,839	$ 11,795