Note 9 - Incentive and Retirement Plans - Cash-based Awards Issued and Outstanding (Details) - USD ($) |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Balance, Targeted Performance-Based Cash | $ 432,245 | $ 0 |
| Balance, Vested | 0 | 0 |
| Issued, Targeted Performance-Based Cash | 476,840 | 432,245 |
| Issued, Vested | $ 0 | $ 0 |
| Issued, Vesting Date | Jan. 01, 2029 | Jan. 01, 2028 |
| Issued, Vesting Date | Jan. 01, 2029 | Jan. 01, 2028 |
| Balance, Targeted Performance-Based Cash | $ 909,085 | $ 432,245 |
| Balance, Vested | $ 0 | $ 0 |