XML 36 R26.htm IDEA: XBRL DOCUMENT v3.20.2
Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Prepaid Expenses and Other Current Assets    
Prepaid research and development expenses $ 3,105,222 $ 3,838,835
Other prepaid expenses 358,821 301,534
Other receivables 49,362 185,953
Prepaid expenses and other current assets $ 3,513,405 $ 4,326,322