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Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 02, 2023
Jul. 03, 2022
Jul. 02, 2023
Jul. 03, 2022
Revenue $ 2,921 $ 4,541 $ 7,054 $ 8,637
New Products [Member]        
Revenue 2,233 3,131 5,288 6,581
Hardware Products [Member]        
Revenue 366 1,464 528 3,299
Mature Products [Member]        
Revenue 688 1,410 1,766 2,056
eFPGA IP [Member]        
Revenue 1,857 1,617 4,667 3,188
SaaS and Other [Member]        
Revenue $ 10 $ 50 $ 93 $ 94