Note 4 - Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property and equipment, gross | $ 19,098 | $ 19,234 |
| Less: accumulated depreciation | (13,593) | (13,801) |
| Property and equipment, net | 5,505 | 5,433 |
| Laboratory Equipment [Member] | ||
| Property and equipment, gross | 13,967 | 14,005 |
| Office Equipment [Member] | ||
| Property and equipment, gross | 937 | 1,142 |
| Leasehold Improvements [Member] | ||
| Property and equipment, gross | 2,706 | 3,929 |
| Construction in Progress [Member] | ||
| Property and equipment, gross | $ 1,488 | $ 158 |
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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