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]	9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022
Distributor "A" [Member]
Concentration risk percentage		14.00%
Customer "A" [Member]
Concentration risk percentage	89.00%
Customer "C" [Member]
Concentration risk percentage		22.00%
Customer "F" [Member]
Concentration risk percentage		44.00%