Note 9 - Income Taxes - Components of Provision (Benefit) for Income Taxes for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
U.S. Federal	$ 1,103	$ 0	$ 0
U.S. State	101	21	130
Foreign	22,862	5,950	2,173
Total current	24,066	5,971	2,303
U.S. Federal	5	8	98
U.S. State	0	0	1
Foreign	948	(5,313)	(5,484)
Total deferred	953	(5,305)	(5,385)
Income Tax Expense (Benefit), Total	$ 25,019	$ 666	$ (3,082)