Note 8 - Income Taxes - Components of Provision (Benefit) for Income Taxes for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
U.S. Federal			$ 12
U.S. State	130	51	18
Foreign	2,173	8,787	6,005
Total current	2,303	8,838	6,035
U.S. Federal	98	56	(3,451)
U.S. State	1		(481)
Foreign	(5,484)	(8,263)	141
Total deferred	(5,385)	(8,207)	(3,791)
	$ (3,082)	$ 631	$ 2,244