Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021	Feb. 02, 2022
Income Tax Expense (Benefit), Total	$ 17	$ 5	$ 16	$ 157
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent			(2.10%)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0		$ 0		$ 0
Open Tax Year			1999 2020 2021
Approximate [Member]
Income Tax Expense (Benefit), Total	$ 17	$ 5	$ 16	$ 200