Note 2 - Summary of Significant Accounting Policies - Schedule of Anti-dilutive Securities (Details) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 937,450 | 1,041,129 |
| Share-Based Payment Arrangement, Option [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 737,450 | 663,004 |
| Warrant [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 200,000 | 200,000 |
| Restricted Stock Units (RSUs) [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0 | 178,125 |