Note 4 - Balance Sheet Components - Intangible Assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Intangible assets, gross | $ 5,080 | $ 5,080 |
| Less: accumulated amortization | (2,619) | (2,254) |
| Intangible assets, net | 2,461 | 2,826 |
| Developed Technology Rights [Member] | ||
| Intangible assets, gross | 5,000 | 5,000 |
| Intellectual Property [Member] | ||
| Intangible assets, gross | $ 80 | $ 80 |
| 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
|
| 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
|
| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite- and indefinite-lived intangible assets and capitalized cost for software to be sold, leased, or marketed. Excludes goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|