Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2019

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

	As of
	June 30, 2019		December 31, 2018
Bonus	$	1,414,720	$	2,600,839
Deferred revenue	5,364,080		4,159,946
Interest payable	965,133		35,567
Lease liability, current portion	405,244		—
Research and development vendor costs	260,276		1,446,410
Professional fees	535,944		242,043
Vacation	354,206		294,794
Other	752,680		869,318
Accrued expenses and other current liabilities	$	10,052,283	$	9,648,917