Note 9 - Share-based Compensation - Shares Authorized, Available for Future Grant and Outstanding Under Each Plan (Details) |
Jun. 30, 2025
shares
|
|---|---|
| Authorized (in shares) | 2,100,000 |
| Available (in shares) | 696,610 |
| Outstanding (in shares) | 1,024,217 |
| The 2016 Plan [Member] | |
| Authorized (in shares) | 1,300,000 |
| Available (in shares) | 92,484 |
| Outstanding (in shares) | 816,343 |
| The 2024 Directors Plan [Member] | |
| Authorized (in shares) | 800,000 |
| Available (in shares) | 604,126 |
| Outstanding (in shares) | 195,874 |
| 2014 Directors Plan [Member] | |
| Authorized (in shares) | 0 |
| Available (in shares) | 0 |
| Outstanding (in shares) | 12,000 |