Note 7 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2022	Oct. 01, 2022	Oct. 02, 2021	Jan. 01, 2022
Balance	$ 23,818	$ 23,818
Right-of-use assets obtained for new lease contracts during the period		639
Amortization of right-of-use assets during the period		(4,995)	$ (4,926)
Impairment of right-of use asset during the period (recorded in Restructuring charges)		(1,149)	0
Adjustments for present value and foreign currency effects		(941)
Balance		17,372
Balance	24,944	24,944
Lease liabilities incurred for new lease contracts during the period	639
Accretion of lease liabilities	849
Operating cash used by payments on lease liabilities	(5,500)	(5,500)	$ (5,786)
Adjustments for present value and foreign currency effects	(920)
Balance	20,012	20,012
Long-term operating lease liabilities, net of current portion	14,169	$ 14,169		$ 19,248
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued expenses)	$ (5,843)