Accounts Payable and Accrued Expenses

3 Months Ended

Mar. 31, 2020

Payables And Accruals [Abstract]

Accounts Payable and Accrued Expenses

3. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses are as follows:

	March 31,		December 31,
	2020		2019
Accrued retention bonus	$	720,398	$	521,859
Restructuring accrual (see Note 12)		521,848		793,913
Accounts payable		421,120		439,785
Professional fees		412,429		346,999
Accrued project costs		282,765		382,131
Accrued bonus		106,159		689,830
Accrued vacation		65,020		43,470
Other		17,984		13,463
Total accounts payable and accrued expenses	$	2,547,723	$	3,231,450