Note 10 - Equity - Outstanding Warrants (Details) |
Mar. 31, 2025
$ / shares
shares
|
|---|---|
| Outstanding warrants (in shares) | 220,000 |
| Warrant 1 [Member] | |
| Outstanding warrants (in shares) | 20,000 |
| Outstanding warrants, exercise price (in dollars per share) | $ / shares | $ 4.56 |
| Outstanding warrants, expiration date | Dec. 31, 2025 |
| Warrant 2 [Member] | |
| Outstanding warrants (in shares) | 50,000 |
| Outstanding warrants, exercise price (in dollars per share) | $ / shares | $ 4.56 |
| Outstanding warrants, expiration date | Dec. 31, 2025 |
| Warrant 3 [Member] | |
| Outstanding warrants (in shares) | 50,000 |
| Outstanding warrants, exercise price (in dollars per share) | $ / shares | $ 4.56 |
| Outstanding warrants, expiration date | Dec. 31, 2025 |
| Warrant 4 [Member] | |
| Outstanding warrants (in shares) | 100,000 |
| Outstanding warrants, exercise price (in dollars per share) | $ / shares | $ 4.56 |
| Outstanding warrants, expiration date | Dec. 31, 2025 |