Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001253689 (http://www.sec.gov/CIK)

Balance Sheets	Period [Axis]
	2016-12-31	2015-12-31
Balance Sheets
Assets
Current Assets:
Cash and cash equivalents	40,041,641	46,802,560
Prepaid expenses and other current assets	478,503	441,810
Total current assets	40,520,144	47,244,370
Property and equipment, net	1,056,332	521,378
Prepaid research and development expenses	759,531	696,531
Deposits	52,320
Total assets	42,388,327	48,462,279
Liabilities & stockholders' equity
Current liabilities:
Accounts payable	1,565,210	564,235
Accrued bonuses	1,432,485	1,037,112
Accrued expenses	3,267,371	6,145,631
Deferred rent	68,551
Total current liabilities	6,333,617	7,746,978
Deferred rent, net of current portion	753,579	243,647
Total liabilities	7,087,196	7,990,625
Stockholders' equity:
Preferred stock; $0.001 par value; 5,000,000 shares authorized; no shares issued and outstanding at December 31, 2016 and December 31, 2015	xsi:nil	xsi:nil
Common stock; $0.001 par value; 100,000,000 shares authorized, 23,250,023 shares issued and outstanding at December 31, 2016; 100,000,000 shares authorized, 19,050,204 shares issued and outstanding at December 31, 2015	23,249	19,049
Additional paid-in capital	154,254,193	127,619,078
Accumulated deficit	(118,976,311)	(87,166,473)
Total stockholders' equity	35,301,131	40,471,654
Total liabilities and stockholders' equity	42,388,327	48,462,279