Note 8 - Income Taxes - Components of Provision (Benefit) for Income Taxes for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
U.S. Federal		$ 12	$ 11
U.S. State	51	18	8
Foreign	8,787	6,005	3,793
Total current	8,838	6,035	3,812
U.S. Federal	56	(3,451)	91
U.S. State		(481)	47
Foreign	(8,263)	141	(1,203)
Total deferred	(8,207)	(3,791)	(1,065)
	$ 631	$ 2,244	$ 2,747