Note 2 - Summary of Significant Accounting Policies - Inventory (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Jan. 01, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Raw material | $ 125 | $ 210 | |
| Finished goods | 185 | 120 | |
| Total | $ 310 | $ 310 | $ 330 |
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|