Note 10 - Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Balance at beginning of year	$ 33,368	$ 33,391	$ 33,696
Additions for tax positions of current year	899	910	686
Additions/(Reductions) for tax positions of prior years	1,802
Additions/(Reductions) for tax positions of prior years		(428)	(83)
Reductions due to lapse of the statute of limitations	(295)	(354)	(1,012)
Foreign exchange rate impact	126		104
Foreign exchange rate impact		(151)
Balance at end of year	$ 35,900	$ 33,368	$ 33,391