Note 1 - Basis of Presentation and Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Production Equipment and Software [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Production Equipment and Software [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Tools, Dies and Molds [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Tools, Dies and Molds [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Masks [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Arrow Electronics Inc [Member]
Concentration Risk, Percentage	36.00%	29.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Weikeng Group [Member]
Concentration Risk, Percentage	45.00%	36.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Future Group [Member]
Concentration Risk, Percentage		18.00%