Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Professional fees	$ 165,000	$ 126,000
Research and development costs	9,000	50,000
Wages, bonuses and employee benefits	268,000	211,000
Royalties and milestones	716,000	316,000
Other	4,000	23,000
Total	$ 1,162,471	$ 726,191