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Note 13 - Information Concerning Segments, Product Lines, Geographic Information, Accounts Receivable, and Revenue Concentration (Tables) | 9 Months Ended
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Sep. 28, 2025
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 28, 2025 |  |  | September 29, 2024 |  |  | September 28, 2025 |  |  | September 29, 2024 |
New products |  | $ | 953 |  |  | $ | 3,473 |  |  | $ | 7,618 |  |  | $ | 11,037 |
Mature products |  |  | 1,076 |  |  |  | 736 |  |  |  | 2,423 |  |  |  | 2,937 |
Total revenue |  | $ | 2,029 |  |  | $ | 4,209 |  |  | $ | 10,041 |  |  | $ | 13,974 |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 28, 2025 |  |  | September 29, 2024 |  |  | September 28, 2025 |  |  | September 29, 2024 |
Hardware products |  | $ | 280 |  |  | $ | 28 |  |  | $ | 729 |  |  | $ | 1,028 |
eFPGA IP and professional services |  |  | 673 |  |  |  | 3,445 |  |  |  | 6,889 |  |  |  | 10,009 |
New products revenue |  | $ | 953 |  |  | $ | 3,473 |  |  | $ | 7,618 |  |  | $ | 11,037 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 28, 2025 |  |  | September 29, 2024 |  |  | September 28, 2025 |  |  | September 29, 2024 |
Asia Pacific |  | $ | 956 |  |  | $ | 508 |  |  | $ | 1,948 |  |  | $ | 1,637 |
North America |  |  | 1,037 |  |  |  | 3,609 |  |  |  | 7,878 |  |  |  | 11,903 |
Europe |  |  | 36 |  |  |  | 92 |  |  |  | 215 |  |  |  | 434 |
Total revenue |  | $ | 2,029 |  |  | $ | 4,209 |  |  | $ | 10,041 |  |  | $ | 13,974 |
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 28, |  |  | September 29, |  |  | September 28, |  |  | September 29, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Distributor "A" |  |  | 22 | % |  |  | 11 | % |  |  | 15 | % |  |  | 11 | %
Distributor "C" |  |  | 12 | % |  |  | * |  |  |  | * |  |  |  | * |
Distributor "E" |  |  | 13 | % |  |  | * |  |  |  | * |  |  |  | * |
Customer "A" |  |  | * |  |  |  | 54 | % |  |  | 53 | % |  |  | 59 | %
Customer "B" |  |  | 18 | % |  |  | 10 | % |  |  | 11 | % |  |  | * |
Customer "J" |  |  | * |  |  |  | 19 | % |  |  | * |  |  |  | * |
Customer "P" |  |  | 13 | % |  |  | * |  |  |  | * |  |  |  | * |
Customer "Q" |  |  | 25 | % |  |  | * |  |  |  | * |  |  |  | * |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | September 28, |  |  | December 29, |
|  | 2025 |  |  | 2024 |
Distributor "A" |  |  | * |  |  |  | 10 | %
Distributor "D" |  |  | * |  |  |  | 12 | %
Customer "A" |  |  | 56 | % |  |  | 50 | %
Customer "K" |  |  | * |  |  |  | 10 | %
Customer "Q" |  |  | 15 | % |  |  | * |

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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