Note 13 - Taxes on Income (Details) - Provisions for Federal, Foreign and State Income Taxes - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Current expense/(benefit):
Federal	$ 1,524	$ 224	$ 473
Foreign	9,279	5,555	2,605
State	1,403	712	627
	12,206	6,491	3,705
Deferred expense/(benefit):
Federal	19,971	3,856	3,246
Foreign	3,795	493	8,692
State	(2,624)	94	5,106
	21,142	4,443	17,044
	$ 33,348	$ 10,934	$ 20,749