Note 4 - Certain Balance Sheet Components - Summary of Intangible Assets -10-Q (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Finite-lived intangible assets, gross | $ 880 | $ 880 | $ 880 |
| Finite-lived intangible assets, accumulated amortization | (393) | (371) | (284) |
| Finite-lived intangible assets, net | 487 | 509 | 596 |
| Developed Technology Rights [Member] | |||
| Finite-lived intangible assets, gross | 760 | 760 | 760 |
| Finite-lived intangible assets, accumulated amortization | (285) | (269) | (206) |
| Finite-lived intangible assets, net | 475 | 491 | 554 |
| Trade Names [Member] | |||
| Finite-lived intangible assets, gross | 120 | 120 | 120 |
| Finite-lived intangible assets, accumulated amortization | (108) | (102) | (78) |
| Finite-lived intangible assets, net | $ 12 | $ 18 | $ 42 |