Note 7 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024
Balance	$ 13,870
Right-of-use assets obtained for new lease contracts during the period	10,349
Amortization of right-of-use assets during the period	(5,240)	$ (5,674)
Adjustments for present value and foreign currency effects	(14)
Balance	18,965
Balance	15,251
Lease liabilities accrued for new lease contracts during the period	10,349
Accretion of lease liabilities	850
Operating cash used for payments on lease liabilities	(5,971)	$ (6,972)
Adjustments for present value and foreign currency effects	(97)
Balance	20,382
Less: Current portion of operating lease liabilities (included in Accrued liabilities)	(5,805)		$ (5,818)
Long-term operating lease liabilities, net of current portion	$ 14,577		$ 9,433