CONSOLIDATED BALANCE SHEET - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 66,686,695	$ 33,854,153
Marketable securities	24,652,348	0
Prepaid expenses and other current assets	908,574	370,396
Total current assets	92,247,617	34,224,549
Marketable securities	2,312,949	0
Property and equipment, net	382,437	85,144
Deferred IPO issuance costs	0	1,074,794
Deferred tax assets	0	50,103
Other assets	0	50,000
Restricted cash	126,835	126,808
Total assets	95,069,838	35,611,398
Current liabilities:
Accounts payable	875,646	578,653
Accrued expenses and other current liabilities	1,947,374	416,524
Deferred tax liabilities	0	50,103
Deferred rent, current portion	24,381	21,881
Total current liabilities	2,847,401	1,067,161
Deferred rent, net of current portion	14,587	35,968
Other long term liabilities	15,442	15,442
Total liabilities	$ 2,877,430	$ 1,118,571
Commitments and contingencies (Note 8)
Convertible preferred stock:
Preferred stock, carrying value	$ 0	$ 0
Stockholders' equity (deficit):
Common stock, $0.0001 par value; 100,000,000 and 61,000,000 shares authorized at December 31, 2015 and December 31, 2014, respectively, 17,943,880 and 5,434,301 shares issued at December 31, 2015 and December 31, 2014, respectively, and 15,741,618 and 2,215,711 shares outstanding at December 31, 2015 and December 31, 2014, respectively	1,574	221
Additional paid-in capital	129,367,978	1,472,299
Accumulated other comprehensive loss	(24,654)	0
Accumulated deficit	(37,152,490)	(8,010,860)
Total stockholders' equity (deficit)	92,192,408	(6,538,340)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	95,069,838	35,611,398
Series A convertible preferred stock
Convertible preferred stock:
Preferred stock, carrying value	0	15,637,032
Series B Preferred Stock
Convertible preferred stock:
Preferred stock, carrying value	$ 0	$ 25,394,135