Note 5 - Stock Incentive Plan - Schedule of Option Grants and Fair Value (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Stock options granted (in shares) | 9,550 | 13,718 | 225,881 | 15,718 |
| Weighted-average grant date fair value per share (in dollars per share) | $ 30.56 | $ 2.55 | $ 29.23 | $ 2.4 |
| Fair value of shares vested | $ 957,123 | $ 181,084 | $ 1,702,559 | $ 359,734 |