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Note C - Marketable Securities | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | NOTE C - MARKETABLE SECURITIES Marketable securities include investments in equity mutual funds, which are reported at their fair values, and U.S. Treasury Bills and Certificates of Deposit with original maturities greater than 3 months, which are recorded at amortized cost. The disaggregated net gains and losses on the marketable securities recognized in the income statement for the years ended December 31, 2025 and 2024 are as follows:
|  | Years ended December 31, |
|  | 2025 |  |  | 2024 |
Net gains recognized during the year on marketable securities |  | $ | 34,359 |  |  | $ | 26,989 |
Less: Net losses realized during the year on marketable securities sold during the period |  |  | 1,507 |  |  |  | --- |
Net unrealized gains recognized during the reporting year on marketable securities still held at the reporting date |  | $ | 35,866 |  |  | $ | 26,989 |
The fair values of the Company’s marketable securities are determined in accordance with US GAAP, with fair value being defined as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the Company utilizes the three-tier value hierarchy, as prescribed by US GAAP, which prioritizes the inputs used in measuring fair value as follows: • Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. • Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement. The Company’s marketable equity securities, which are considered available-for-sale securities, are re-measured to fair value on a recurring basis and are valued using Level 1 inputs using quoted prices (unadjusted) for identical assets in active markets. The following tables summarize the Company’s investments: December 31, 2025
|  | Cost |  |  | Fair Value |  |  | Unrealized Gain |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |
Equity and other mutual funds |  | $ | 713,120 |  |  | $ | 777,963 |  |  | $ | 64,843 |
Other short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury Bills (original maturities > 3 months) |  |  | 6,544,683 |  |  |  | 6,544,683 |  |  |  | --- |
Total marketable securities |  | $ | 7,257,803 |  |  | $ | 7,322,646 |  |  | $ | 64,843 |
December 31, 2024
|  | Cost |  |  | Fair Value |  |  | Unrealized Gain |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |
Equity and other mutual funds |  | $ | 634,705 |  |  | $ | 663,682 |  |  | $ | 28,977 |
Other short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
Fixed income Certificates of Deposit (original maturities > 3 months) |  |  | 570,000 |  |  |  | 570,000 |  |  |  | --- |
U.S. Treasury Bills (original maturities > 3 months) |  |  | 6,288,943 |  |  |  | 6,288,943 |  |  |  | --- |
Total other short-term investments |  | $ | 6,858,943 |  |  | $ | 6,858,943 |  |  | $ | --- |
Total marketable securities |  | $ | 7,493,648 |  |  | $ | 7,522,625 |  |  | $ | 28,977 |
Investment income is recognized when earned and consists principally of dividend income from equity mutual funds and interest income on United States Treasury Bills, Certificates of Deposit and money market funds. Realized gains and losses on sales of investments are determined on a specific identification basis. Proceeds from the sale and redemption of marketable securities amounted to $13,176,210 for the year ended December 31, 2025, with realized losses on those sales of $1,507. Proceeds from the sale and redemption of marketable securities for the year ended December 31, 2024 amounted to $1,815,000, and there were no realized gains or losses.

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