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Marketable Equity Securities (Tables) | 12 Months Ended
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Dec. 31, 2020
Investments Debt And Equity Securities [Abstract] |
Schedule of Investments in Marketable Equity Securities | Investments in marketable equity securities consisted of the following:
|  |  |  |  |  | Gross Unrealized |  |  |  |  |
December 31, 2020 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 1,160,964 |  |  | $ | — |  |  | $ | 1,916,451 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 1,160,964 |  |  | $ | — |  |  | $ | 1,916,451 |
|  |  |  |  |  | Gross Unrealized |  |  |  |  |
December 31, 2019 |  | Cost Basis |  |  | Gains |  |  | Losses |  |  | Value |
Investment in marketable equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | $ | 755,487 |  |  | $ | 1,005,825 |  |  | $ | — |  |  | $ | 1,761,312 |
Total investment in marketable equity securities |  | $ | 755,487 |  |  | $ | 1,005,825 |  |  | $ | — |  |  | $ | 1,761,312 |

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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