Accounts Payable and Accrued Expenses

6 Months Ended

Jun. 30, 2021

Payables And Accruals [Abstract]

Accounts Payable and Accrued Expenses

3. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses are as follows:

	June 30,		December 31,
	2021		2020
Restructuring accrual (see Note 11)	$	677,891	$	—
Accounts payable		746,880		523,037
Professional fees		504,903		444,534
Accrued project costs		—		328,463
Accrued retention bonus		225,960		—
Accrued vacation		31,701		48,107
Accrued bonus		—		428,683
Other		10,805		26,547
Total accounts payable and accrued expenses	$	2,198,140	$	1,799,371