Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2017

Accrued Expenses

Schedule of accrued expenses

	December 31,
	2017		2016
Research and development	$	1,642,154	$	1,693,748
Accrued compensation		704,556		539,290
Other		332,824		587,339
	$	2,679,534	$	2,820,377