Note 14 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Shipment Destination (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2024	Dec. 31, 2023	Jan. 01, 2023
Revenue	$ 20,112	$ 21,198	$ 16,180
Asia Pacific [Member]
Revenue	2,199	1,965	3,558
North America [Member]
Revenue	17,196	18,644	10,912
Europe [Member]
Revenue	$ 717	$ 589	$ 1,710

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details