Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022
Revenue	$ 6,665	$ 3,459	$ 13,719	$ 12,096
New Products [Member]
Revenue	6,096	2,252	11,384	8,833
Hardware Products [Member]
Revenue	248	308	776	3,607
Mature Products [Member]
Revenue	569	1,207	2,335	3,263
eFPGA IP [Member]
Revenue	5,838	1,700	10,505	4,911
SaaS and Other [Member]
Revenue	$ 10	$ 244	$ 103	$ 315

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
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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+ Details