Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 9,007,071	$ 8,691,155
Prepaid expenses	267,711	833,276
Other current assets	7,997
Total current assets	9,282,779	9,524,431
Other assets	11,551	7,997
Total assets	9,294,330	9,532,428
Current Liabilities:
Accounts payable and accrued expenses	478,223	927,606
Accrued compensation	933,450	760,782
Current portion of long-term debt		146,052
Total current liabilities	1,411,673	1,834,440
Warrant liability	4,095,019
Long-term debt, net of current portion		4,233,059
Total liabilities	5,506,692	6,067,499
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value; authorized shares — 5,000,000 at December 31, 2016 and 2015; issued and outstanding shares — 0 at December 31, 2016 and 2015
Common stock, $0.0001 par value; authorized shares — 50,000,000 at December 31, 2016 and 2015; issued and outstanding shares — 12,350,360 and 7,201,774 at December 31, 2016 and 2015, respectively	1,235	720
Additional paid-in capital	62,595,546	51,524,821
Accumulated deficit	(58,809,143)	(48,060,612)
Total stockholders' equity	3,787,638	3,464,929
Total liabilities and stockholders' equity	$ 9,294,330	$ 9,532,428