Note 10 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Balance	$ 23,818
Right-of-use assets obtained for new lease contracts during the period	2,134
Amortization of right-of-use assets during the period	(6,512)	$ (6,587)	$ (5,960)
Impairment of right-of use asset during the period (recorded in Restructuring charges)	(1,149)	0	0
Adjustments for present value and foreign currency effects	(701)
Balance	17,590	23,818
Balance	24,944
Lease liabilities incurred for new lease contracts during the period	2,134
Accretion of lease liabilities	1,087
Operating cash used by payments on lease liabilities	(7,419)	(7,639)	$ (7,713)
Adjustments for present value and foreign currency effects	(674)
Balance	20,072	24,944
Long-term operating lease liabilities, net of current portion	13,618	$ 19,248
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued liabilities)	$ (6,454)