CONDENSED STATEMENT OF CHANGES IN COMMON STOCK, CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' DEFICIT - USD ($)	Secondary public offering Common Stock	Secondary public offering Additional Paid-in Capital	Secondary public offering	Private Investment in Public Entities June 2016 Common Stock	Private Investment in Public Entities June 2016 Additional Paid-in Capital	Private Investment in Public Entities June 2016	Private Investment in Public Entities October 2016 Common Stock	Private Investment in Public Entities October 2016 Additional Paid-in Capital	Private Investment in Public Entities October 2016	Private Investment in Public Entities November 2016 Common Stock	Private Investment in Public Entities November 2016 Additional Paid-in Capital	Private Investment in Public Entities November 2016	Private Investment in Public Entities June 2017 Common Stock	Private Investment in Public Entities June 2017 Additional Paid-in Capital	Private Investment in Public Entities June 2017	Common Stock	Additional Paid-in Capital	Deficit Accumulated During the Development Stage	Total
Balance at Dec. 31, 2015																$ 812	$ 30,100,613	$ (25,702,328)	$ 4,399,097
Balance (in shares) at Dec. 31, 2015																8,124,923
Increase (decrease) in Stockholders' Equity (Deficit)
Issuance of common stock in a secondary public offering, net of discounts and commissions of $373,011 and offering costs of $496,887 February 2016	$ 200	$ 4,129,902	$ 4,130,102
Issuance of common stock in a secondary public offering ,net of discounts and commissions of $373,011 and offering costs of $496,887 February 2016 (in shares)	2,000,000
Issuance of common stock in a private investment in public entities offering, net of offering costs of $105,398, $61,781 and $3,000.				$ 203	$ 2,571,099	$ 2,571,302
Issuance of common stock in a private investment in public entities offering, net of offering costs of $105,398, $61,781 and $3,000.(in shares)				2,027,490
Issuance of common stock in a private investment in public entities offering October 2016							$ 17	$ 149,983	$ 150,000
Issuance of common stock in a private investment in public entities offering October 2016 (in shares)							170,455
Issuance of common stock and equity warrants in a private investment in public entities offering, net of warrant liability of $700,001 and net of offering costs of $96,833 November 2016										$ 167	$ 203,000	$ 203,167
Issuance of common stock and equity warrants in a private investment in public entities offering, net of warrant liability of $700,001 and net of offering costs of $96,833 November 2016 (in shares)										1,666,668
Stock-based compensation																	717,927		717,927
Warrants, issued in conjunction with debt extinguishment																	108,000		108,000
Issuance of common stock in exchange for vested restricted stock units																$ 2	(2)
Issuance of common stock in exchange for vested restricted stock units (in shares)																17,596
Net and comprehensive loss																		(14,733,780)	(14,733,780)
Balance at Dec. 31, 2016																$ 1,401	37,980,522	(40,436,108)	(2,454,185)
Balance (in shares) at Dec. 31, 2016																14,007,132
Increase (decrease) in Stockholders' Equity (Deficit)
Issuance of common stock in a private investment in public entities offering, net of offering costs of $105,398, $61,781 and $3,000.				$ 337	$ 2,009,199	$ 2,009,536							$ 10	$ 46,990	$ 47,000
Issuance of common stock in a private investment in public entities offering, net of offering costs of $105,398, $61,781 and $3,000.(in shares)				3,375,369									100,000
Stock-based compensation																	444,170		444,170
Warrants, issued in conjunction with debt extinguishment																	207,713		207,713
Net and comprehensive loss																		(6,521,000)	(6,521,000)
Balance at Jun. 30, 2017																$ 1,748	$ 40,688,594	$ (46,957,108)	$ (6,266,766)
Balance (in shares) at Jun. 30, 2017																17,482,501