Accrued expenses and Other Liabilities (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Accrued expenses and Other Liabilities
Accrued clinical trial expenses	$ 1,086,202	$ 628,000
Accrued manufacturing expenses	15,000	175,089
Compensation and related benefits	225,095	209,600
Accrued franchise tax	55,000	172,500
Other expenses	383,088	429,345
Accrued expenses	$ 1,764,385	$ 1,614,534