Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2019

3. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following as of:

	December 31,
	2019		2018
Accounts payable	$	439,785	$	595,680
Restructuring accrual (see Note 16)		793,913		—
Professional fees		346,999		487,923
Accrued bonus		689,830		1,877,455
Accrued retention bonus		521,859		—
Accrued vacation		43,470		90,663
Accrued project costs		382,131		2,232,014
Other		13,463		173,182
Total accounts payable and accrued expenses	$	3,231,450	$	5,456,917