Note 8 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Balance	$ 23,591
Right-of-use assets obtained for new and modified lease contracts during the period	4,297
Amortization of right-of-use assets during the period	(5,960)	$ (5,797)	$ 0
Adjustments for present value and foreign currency effects	250
Balance	22,178	23,591
Balance	26,124
Lease liabilities incurred for new lease contracts during the period	2,646
Accretion of lease liabilities	1,629
Operating cash used by payments on lease liabilities	(7,713)	(8,425)	$ 0
Adjustments for present value and foreign currency effects	369
Balance	23,055	26,124
Long-term operating lease liabilities, net of current portion	18,906	$ 21,438
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued expenses)	$ (4,149)