Note 11 - Loss Per Share (Details Textual) - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Restricted Stock Units (RSUs) [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 309,527 | 554,571 |
| Prefunded Warrants [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 5,299,879 | 5,299,879 |
| Warrant [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 6,891,346 | 6,091,346 |