Note 2 - Summary of Significant Accounting Policies - Useful Lives of Property and Equipment (Details) |
Jun. 30, 2026 |
|---|---|
| TAH-Driver Equipment [Member] | Minimum [Member] | |
| Property and equipment, useful life (Year) | 3 years |
| TAH-Driver Equipment [Member] | Maximum [Member] | |
| Property and equipment, useful life (Year) | 5 years |
| Laboratory Equipment [Member] | Minimum [Member] | |
| Property and equipment, useful life (Year) | 2 years |
| Laboratory Equipment [Member] | Maximum [Member] | |
| Property and equipment, useful life (Year) | 10 years |
| Office and Computer Equipment [Member] | |
| Property and equipment, useful life (Year) | 5 years |