Note 3 - Income (Loss) Per Share - Antidilutive Securities Excluded from Calculation of Diluted Income (Loss) Per Share (Details) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Total anti-dilutive securities (in shares) | 9,504,395 | 1,199,192 |
| Restricted Stock Units (RSUs) [Member] | ||
| Total anti-dilutive securities (in shares) | 1,471,345 | 801,525 |
| Share-Based Payment Arrangement, Option [Member] | ||
| Total anti-dilutive securities (in shares) | 331,667 | 397,667 |
| Warrant [Member] | ||
| Total anti-dilutive securities (in shares) | 7,701,383 | 0 |