Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 34,645,549	$ 88,067,647
Prepaid expenses and other current assets	1,005,589	986,680
Total current assets	35,651,138	89,054,327
Property and equipment, net	426,952	3,423,880
Other assets	142,870	142,870
Total assets	36,220,960	92,621,077
Current liabilities:
Accounts payable	399,447	4,369,133
Accrued expenses	419,119	5,422,205
Restructuring reserve	5,563,186	0
Short term debt	0	3,075,421
Total current liabilities	6,381,752	12,866,759
Noncurrent liability:
Long term debt	0	17,382,907
STOCKHOLDERS' EQUITY
Preferred stock, 5,000,000 shares authorized at December 31, 2018 and 2017, zero outstanding	0	0
Common stock, $0.00033 par value, 75,000,000 shares authorized at December 31, 2018 and December 31, 2017, 31,449,989 shares and 30,869,205 shares issued and outstanding at December 31, 2018 and December 31, 2017, respectively	10,591	10,400
Additional paid-in capital	222,644,982	214,309,370
Accumulated deficit	(192,816,365)	(151,948,359)
Total stockholders' equity	29,839,208	62,371,411
Total liabilities and stockholders' equity	$ 36,220,960	$ 92,621,077