Note 8 - Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Net Operating Gain (Loss) | $ (87,766) | $ (81,608) | $ (175,822) | $ (157,995) |
| Weighted average shares outstanding - basic (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 comprehensive profit (loss) per share (in dollars per share) | $ (0.03) | $ (0.03) | $ (0.06) | $ (0.06) |
| Net loss per share - diluted (in dollars per share) | $ (0.03) | $ (0.03) | $ (0.06) | $ (0.05) |