Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Customer and Distributor Concentration of Accounts Receivable (Details) - Customer Concentration Risk [Member] - Accounts Receivable [Member]	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Distributor "A" [Member]
Concentration risk percentage	18.00%	14.00%
Customer "C" [Member]
Concentration risk percentage	11.00%	22.00%
Customer "F" [Member]
Concentration risk percentage	56.00%	44.00%