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Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Investment securities, available for sale | $ 9,887,455 | $ 7,985,886
Earn-out milestone liability | 5,758,983 | 5,717,709
Corporate Debt Securities [Member] |  |
Investment securities, available for sale | 9,887,455 | 7,985,886
Fair Value, Measurements, Recurring [Member] |  |
Earn-out milestone liability | 5,758,983 | 5,717,709
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] |  |
Earn-out milestone liability |  |
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Earn-out milestone liability |  |
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Earn-out milestone liability | 5,758,983 | 5,717,709
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] |  |
Investment securities, available for sale | 9,887,455 | 7,985,886
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] |  |
Investment securities, available for sale |  |
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Investment securities, available for sale | 9,887,455 | 7,985,886
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Investment securities, available for sale |  |

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