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Note 1 - Basis of Presentation and Significant Accounting Policies (Details Textual) | 12 Months Ended
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Dec. 30, 2023 | Dec. 31, 2022 | Jan. 01, 2022
Number of Operating Segments | 1 |  |
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) | 5 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) | 3 years |  |
Accounts Receivable [Member] | Arrow Electronics Inc [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 29.00% | 27.00% |
Accounts Receivable [Member] | Weikeng Group [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 36.00% | 47.00% |
Accounts Receivable [Member] | Future Group [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 18.00% | 9.00% |
Revenue Benchmark [Member] | Sell-through Distributors Concentration Risk [Member] |  |  |
Number of Distributors | 3 |  |
Revenue Benchmark [Member] | Arrow Electronics Inc [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 32.00% | 28.00% | 27.00%
Revenue Benchmark [Member] | Weikeng Group [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 21.00% | 30.00% | 37.00%
Revenue Benchmark [Member] | Future Group [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 13.00% | 8.00% | 6.00%

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