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v3.26.1

Note E - Income Taxes - Reconciliation of the Effective Income Tax Rate (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Research & development credits | $ (10,000) | $ (9,000)
Research & development credits, tax rate | (0.40%) | (0.10%)
Non-taxable dividends | $ (4,441) |
Non-taxable dividends, tax rate | (0.20%) |
(Over) under accrual from prior year | $ (3,957) | $ 3,170
(Over) under accrual from prior year, tax rate | (0.10%) |
Total provision for income taxes | $ 537,277 | $ 857,582
Provision for income taxes, tax rate | 20.30% | 20.90%
Domestic Tax Jurisdiction [Member] |  |
Income taxes at statutory federal income tax rate | $ 555,033 | $ 862,776
Income taxes at statutory federal income tax rate, tax rate | 21.00% | 21.00%
State and Local Jurisdiction [Member] |  |
State taxes, net of federal benefit | $ 642 | $ 636
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent | 0.00% |

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