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Stock Options and Equity-Classified Warrants - Schedule of Total Stock-based Compensation Expense from Stock Options (Details) - Stock Options [Member] - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Employees [Member]    
Allocated employee and non-employee stock-based compensation expense, Total $ 1,406,486 $ 1,084,639
Non Employees [Member]    
Allocated employee and non-employee stock-based compensation expense, Total 54,500
Research and Development Expense [Member] | Employees [Member]    
Allocated employee and non-employee stock-based compensation expense, Total (2,672) 95,485
General and Administrative Expense [Member] | Employees [Member]    
Allocated employee and non-employee stock-based compensation expense, Total 1,409,158 989,154
General and Administrative Expense [Member] | Non Employees [Member]    
Allocated employee and non-employee stock-based compensation expense, Total $ 54,500