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Note 1 - Basis of Presentation (Details Textual) - Sell-through Distributors Concentration Risk [Member] | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 01, 2022 | Oct. 02, 2021 | Jul. 02, 2022 | Oct. 01, 2022 | Oct. 01, 2021 | Jan. 01, 2022
Accounts Receivable [Member] | Distributors [Member] |  |  |  |  |  |
Concentration Risk, Percentage | 90.00% | 90.00% |  | 89.00% | 88.00% |
Accounts Receivable [Member] | Large Distributor One [Member] |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 40.00% |  | 59.00%
Accounts Receivable [Member] | Large Distributor Two [Member] |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 33.00% |  | 28.00%
Revenue Benchmark [Member] |  |  |  |  |  |
Number of Distributors |  |  | 2 |  |  |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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