Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 52,879,907	$ 13,728,972
Prepaid expenses and other current assets	339,203	307,629
Deferred issuance costs	2,378,217	1,405,396
Total current assets	55,597,327	15,441,997
Property and equipment, net	2,781,885	1,443,982
Other assets	104,240	160,682
Total assets	58,483,452	17,046,661
Current liabilities:
Accounts payable	2,644,987	2,045,782
Accrued expenses	3,590,222	1,582,162
Short term debt	2,214,934	265,265
Total current liabilities	8,450,143	3,893,209
Noncurrent liability:
Warrant liability	3,726,043	1,671,106
Long term debt	3,686,084	2,527,686
STOCKHOLDERS' (DEFICIT) EQUITY
Common stock, $0.00033 par value, 38,500,000 shares and 35,000,000 shares authorized at September 30, 2015 and December 31, 2014, respectively, 1,688,475 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively	770	770
Additional paid-in capital	3,550,961	1,984,399
Accumulated deficit	(54,195,499)	(29,818,918)
Total stockholders' (deficit) equity	(50,643,768)	(27,833,749)
Total liabilities and stockholders' (deficit) equity	58,483,452	17,046,661
Convertible Preferred Stock - Series C-2 [Member]
Convertible preferred stock
Preferred stock	54,402,094	0
Convertible Preferred Stock - Series C-1 [Member]
Convertible preferred stock
Preferred stock	15,653,284	14,660,944
Convertible Preferred Stock - Series C [Member]
Convertible preferred stock
Preferred stock	18,943,183	17,861,076
Convertible Preferred Stock - Series B-1 [Member]
Convertible preferred stock
Preferred stock	477,191	477,191
Convertible Preferred Stock - Series B [Member]
Convertible preferred stock
Preferred stock	2,991,979	2,991,979
Convertible Preferred Stock - Series A [Member]
Convertible preferred stock
Preferred stock	$ 797,219	$ 797,219