Note 6 - Leases - Schedule of Balance Sheet Classification of Lease Assets and Liabilities (Details) - USD ($) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Operating lease right-of-use assets | $ 268,873 | $ 437,095 | $ 437,095 |
| Amortization for the six months ended June 30, 2026 | (72,774) | $ (84,365) | (168,222) |
| Write off of right-of-use asset | (196,099) | 0 | |
| Operating lease right-of-use assets | 0 | 268,873 | |
| Operating lease liability, short-term | 0 | 196,311 | |
| Operating lease liability, long-term | 0 | 89,053 | |
| Total lease liabilities | $ 0 | $ 285,364 | |