Note 1 - Basis of Presentation and Significant Accounting Policies - Concentration of Risk By Risk (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Arrow Electronics Inc [Member]
Revenue Percentage	33.00%	32.00%	28.00%
Weikeng Group [Member]
Revenue Percentage	31.00%	21.00%	30.00%
Macnica Group [Member]
Revenue Percentage	11.00%	11.00%	10.00%
Future Group [Member]
Revenue Percentage	4.00%	13.00%	8.00%
Other [Member]
Revenue Percentage	10.00%	10.00%	13.00%
Distributors [Member]
Revenue Percentage	89.00%	87.00%	89.00%