Note 10 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Balance	$ 22,178
Right-of-use assets obtained for new and modified lease contracts during the period	8,134
Amortization of right-of-use assets during the period	(6,587)	$ (5,960)	$ (5,797)
Adjustments for present value and foreign currency effects	93
Balance	23,818	22,178
Balance	23,055
Lease liabilities incurred for new lease contracts during the period	8,134
Accretion of lease liabilities	1,305
Operating cash used by payments on lease liabilities	(7,639)	(7,713)	$ (8,425)
Adjustments for present value and foreign currency effects	89
Balance	24,944	23,055
Long-term operating lease liabilities, net of current portion	19,248	$ 18,906
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued expenses)	$ (5,696)