Note 13 - Taxes on Income (Details) - Deferred Tax Assets and Liabilities - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014
Deferred Tax Assets and Liabilities [Abstract]
Deferred income taxes (current asset)	$ 8,726	$ 9,732
Deferred tax asset (non-current asset)	20,110	33,138
Deferred income taxes (non-current liabilities)	(10,505)	(11,002)
	$ 18,331	$ 31,868