Note 11 - Stock-based Compensation - Schedule of Allocation of Recognized Period Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 29, 2025 |
Jun. 30, 2024 |
Jun. 29, 2025 |
Jun. 30, 2024 |
|
| Total costs and expenses | $ 843 | $ 759 | $ 1,779 | $ 2,225 |
| Cost of Sales [Member] | ||||
| Total costs and expenses | 189 | 140 | 347 | 438 |
| Research and Development Expense [Member] | ||||
| Total costs and expenses | 205 | 102 | 347 | 301 |
| Selling, General and Administrative Expenses [Member] | ||||
| Total costs and expenses | $ 449 | $ 517 | $ 1,085 | $ 1,486 |