Note 4 - Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Property and equipment, gross | $ 19,385 | $ 19,234 | $ 19,213 |
| Less: accumulated depreciation | (14,558) | (13,801) | (10,508) |
| Property and equipment, net | 4,827 | 5,433 | 8,705 |
| Laboratory Equipment [Member] | |||
| Property and equipment, gross | 13,963 | 14,005 | 13,806 |
| Office Equipment [Member] | |||
| Property and equipment, gross | 1,158 | 1,142 | 1,140 |
| Leasehold Improvements [Member] | |||
| Property and equipment, gross | 3,929 | 3,929 | 4,107 |
| Construction in Progress [Member] | |||
| Property and equipment, gross | $ 335 | $ 158 | $ 160 |
| 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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| X | ||||||||||
- 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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| X | ||||||||||
- 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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