Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023	Jul. 03, 2022
Income Tax Expense (Benefit)	$ (7)	$ 17	$ 0	$ 16
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent			3.04%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%