Note 1 - Description of Business, Basis of Presentation and Management's Plan -10-Q (Details Textual) - USD ($) $ in Millions |
1 Months Ended | 3 Months Ended | 12 Months Ended |
|---|---|---|---|
Dec. 31, 2022 |
Mar. 31, 2026 |
Dec. 31, 2025 |
|
| Proceeds from Issuance of Debt | $ 9.7 | ||
| Proceeds from Issuance or Sale of Equity | $ 2.7 | $ 2.1 | $ 17.4 |
| Senior Secured Note [Member] | |||
| Proceeds from (Repayments of) Related Party Debt | (7.4) | ||
| Related Party [Member] | |||
| Proceeds from (Repayments of) Related Party Debt | $ (0.2) |