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	12 Months Ended
	Jul. 02, 2023	Jan. 01, 2023
Distributor "A" [Member]
Concentration risk percentage	34.00%	14.00%
Distributor "C" [Member]
Concentration risk percentage	16.00%
Customer "C" [Member]
Concentration risk percentage	35.00%	22.00%
Customer "F" [Member]
Concentration risk percentage		44.00%