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Income Taxes (Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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Income Taxes [Abstract] |  |
Net operating loss carryforwards | $ 16,964,199 | $ 12,251,892
Foreign research and development tax credit carryforwards | 2,679,180 | 2,564,679
Property and equipment | 56,697 | 429,764
Intangibles | 3,122,394 | 3,241,649
Total deferred tax assets | 22,822,470 | 18,487,984
Valuation allowance | (22,822,470) | (18,487,984)
Net deferred tax assets |  |

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