Note 3 - Discontinued Operations - Schedule of Income Statement Information From Discontinued Operations 2 (Details) - Sensi ML [Member] - Discontinued Operations [Member] - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 28, 2026 |
Jun. 29, 2025 |
Jun. 28, 2026 |
Jun. 29, 2025 |
|
| Disposal Group, Including Discontinued Operation, Share-based Payment Arrangement Expense | $ 0 | $ 0 | $ 0 | $ (32) |
| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||||
| Disposal Group, Including Discontinued Operation, Share-based Payment Arrangement Expense | 0 | 0 | 0 | 0 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Disposal Group, Including Discontinued Operation, Share-based Payment Arrangement Expense | 0 | 0 | 0 | (32) |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Disposal Group, Including Discontinued Operation, Share-based Payment Arrangement Expense | $ 0 | $ 0 | $ 0 | $ 0 |