Note 3 - Fair Value of Financial Instruments -10-Q (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Repayments of Convertible Debt | $ 7,379 | $ (0) | $ 25 | $ (0) |
| Stock Issued | $ 2,077 | $ 0 | $ 18,245 | $ 0 |
| Repayments of Debt in Stock, Shares (in shares) | 1,380,359 | |||