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Accrued Expenses and Other Current Liabilities (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
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Accrued Expenses and Other Current Liabilities |  |
Accrued research and development expenses | $ 208,175 | $ 375,204
Accrued professional services | 97,396 | 111,728
Credit card payable | 56,979 | 9,466
Leasehold improvements | 42,500 | 0
Accrued franchise tax | 40,995 | 0
Accrued travel and entertainment expenses | 7,385 | 0
Accrued legal expenses | 0 | 168,650
Other | 0 | 12,165
Total accrued expenses and other current liabilities | $ 453,430 | $ 677,213

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