Note 7 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Dec. 31, 2022
Balance	$ 17,590
Right-of-use assets obtained for new lease contracts during the period	393
Amortization of right-of-use assets during the period	(3,317)	$ (3,358)
Adjustments for present value and foreign currency effects	(123)
Balance	14,543
Balance	20,072
Lease liabilities incurred for new lease contracts during the period	393
Accretion of lease liabilities	493
Operating cash used by payments on lease liabilities	(4,082)	$ (3,706)
Adjustments for present value and foreign currency effects	(151)
Balance	16,725
Long-term operating lease liabilities, net of current portion	10,827		$ 13,618
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued liabilities)	$ (5,898)