Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Customer and Distributor Concentration of Revenue (Details) - Customer Concentration Risk [Member] - Revenue Benchmark [Member]	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022
Distributor "A" [Member]
Concentration risk percentage		20.00%	11.00%	15.00%
Distributor "B" [Member]
Concentration risk percentage				16.00%
Distributor "C" [Member]
Concentration risk percentage		10.00%
Customer "A" [Member]
Concentration risk percentage	84.00%	30.00%	67.00%
Customer "B" [Member]
Concentration risk percentage		13.00%
Customer "C" [Member]
Concentration risk percentage		12.00%		20.00%
Customer "F" [Member]
Concentration risk percentage				16.00%