Accounts Payable and Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2021

Payables and Accruals [Abstract]

Schedule of accounts payable and accrued expenses

	March 31, 2021		December 31, 2020
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*		797,152		790,149
Total	$	2,537,461	$	2,665,132

* 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.