Note 7 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Balance	$ 17,590
Right-of-use assets obtained for new lease contracts during the period	40
Amortization of right-of-use assets during the period	(1,657)	$ (1,696)
Adjustments for present value and foreign currency effects	81
Balance	16,054
Balance	20,072
Lease liabilities incurred for new lease contracts during the period	40
Accretion of lease liabilities	257
Operating cash used by payments on lease liabilities	(2,000)	$ (1,884)
Adjustments for present value and foreign currency effects	72
Balance	18,441
Long-term operating lease liabilities, net of current portion	12,012		$ 13,618
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued liabilities)	$ (6,429)