Note 8 - Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Net Operating Gain (Loss) | $ (86,179) | $ (77,149) | $ (244,173) | $ (248,449) |
| Weighted average shares outstanding (in shares) | 2,726,955 | 2,726,955 | 2,726,955 | 2,726,955 |
| Effect of dilutive potential shares (in shares) | 395,000 | 395,000 | 395,000 | 395,000 |
| Shares outstanding - diluted (in shares) | 3,121,955 | 3,121,955 | 3,121,955 | 3,121,955 |
| Net loss per share - basic (in dollars per share) | $ (0.03) | $ (0.03) | $ (0.09) | $ (0.09) |
| Net loss per share - diluted (in dollars per share) | $ (0.03) | $ (0.02) | $ (0.08) | $ (0.08) |