Note 7 - Intangible Assets - Schedule of Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands |
Jun. 28, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Gross Carrying Amount | $ 418 | $ 418 |
| Accumulated Amortization | (98) | (78) |
| Net Carrying Amount | $ 320 | $ 339 |
| Patents [Member] | ||
| Finite-Lived Intangible Asset, Useful Life (Year) | 7 years 6 months | 8 years |
| Gross Carrying Amount | $ 418 | $ 418 |
| Accumulated Amortization | (98) | (78) |
| Net Carrying Amount | $ 320 | $ 339 |
| X | ||||||||||
- Definition Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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