Accounts Payable and Accrued Expenses (Details) - Schedule of accounts payable and accrued expenses - USD ($)		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Schedule of accounts payable and accrued expenses [Abstract]
Trade payables		$ 183,450	$ 311,024
Accrued interest		704,624	554,755
Accrued payroll and related obligations		799,377	891,790
Current portion of operating lease liabilities		52,858	117,414
Other	[1]	797,152	790,149
Total		$ 2,537,461	$ 2,665,132

[1] Included in Other expenses is accrued non-employee Directors’ Compensation of approximately $392,000 and $349,000 as of March 31, 2021 and December 31, 2020, respectively. In May 2021, the Non-employee Directors were compensated for their service through a grant of stock options. See Note 9.