Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Oct. 01, 2022	Jul. 02, 2022	Oct. 02, 2021	Jul. 03, 2021	Oct. 01, 2022	Oct. 02, 2021	Jan. 01, 2022
Income Tax Expense (Benefit), Total	$ 400	$ 356	$ (500)	$ (472)	$ 2,431	$ 1,125
Other Noncurrent Liabilities [Member]
Liability for Uncertainty in Income Taxes, Noncurrent	21,200				$ 21,200
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total							$ 21,600
Domestic Tax Authority [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent					21.00%
Foreign Tax Authority [Member]
Deferred Tax Assets, Valuation Allowance, Total	$ 0				$ 0