Note 13 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 01, 2023	Jan. 02, 2022	Jan. 03, 2021
Revenue	$ 16,180	$ 12,685	$ 8,634
New Products [Member]
Revenue	11,675	7,761	2,782
Hardware Products [Member]
Revenue	3,757	4,903	2,383
Mature Products [Member]
Revenue	4,505	4,924	5,852
eFPGA IP [Member]
Revenue	7,545	2,674	223
SaaS and Other [Member]
Revenue	$ 373	$ 184	$ 176

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details