Note 8 - Stockholders' Equity - Computation of Comprehensive Earnings (Loss) Per Share (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Comprehensive Earnings (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 comprehensive profit (loss) per share (in dollars per share) | $ (0.03) | $ (0.03) | $ (0.09) | $ (0.09) |
| Net gain (loss) per share - diluted (in dollars per share) | $ (0.03) | $ (0.02) | $ (0.08) | $ (0.08) |
| X | ||||||||||
- Definition The amount of comprehensive income or loss for the period per each share. No definition available.
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| X | ||||||||||
- Definition The amount of comprehensive income or loss for the period per each share-diluted. No definition available.
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| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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