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		6 Months Ended
	Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023	Jul. 03, 2022
Distributor "A" [Member]
Concentration risk percentage	18.00%	15.00%	17.00%	13.00%
Distributor "E" [Member]
Concentration risk percentage		11.00%		20.00%
Customer "A" [Member]
Concentration risk percentage	47.00%		51.00%
Customer "B" [Member]
Concentration risk percentage	12.00%		10.00%
Customer "C" [Member]
Concentration risk percentage	11.00%	29.00%		23.00%
Customer "D" [Member]
Concentration risk percentage		11.00%
Customer "F" [Member]
Concentration risk percentage		16.00%		21.00%
Customer "H" [Member]
Concentration risk percentage		11.00%
Customer "I" [Member]
Concentration risk percentage				11.00%