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Prepaid Expenses and Other Current Assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Long-term Purchase Commitment [Line Items]    
Prepaid expenses and other current assets $ 1,055,816 $ 267,623
Prepaid expense 400,000 194,000
Research and Development Arrangement    
Long-term Purchase Commitment [Line Items]    
Payments to acquire in-process research and development $ 700,000 $ 74,000