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Marketable Equity Securities (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Cost | $ 516,634 | $ 1,501,912 |
Common Stock [Member] |  |  |
Cost | 301,960 |  | $ 423,025
Gross unrealized gains (losses) | 84,516 |  | 216,622
Gross realized gains (losses) |  |  |
Fair value | $ 386,476 |  | $ 639,647

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