CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY Statement - 3 months ended Mar. 31, 2018 - USD ($)	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance (in shares) at Dec. 31, 2017		60,600	52,791,584
Balance at Dec. 31, 2017	$ 6,506,107	$ 60	$ 5,279	$ 179,546,954	$ (173,046,186)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,406,131			1,406,131
Issuance of common stock upon exercise of warrants (in shares)			5,136,667
Issuance of common stock upon exercise of warrants	1,449,167
Stock Issued During Period Value Warrants Exercised			$ 514	1,448,653
Issuance of common stock upon vesting of restricted stock units (in shares)			904,702
Issuance of common stock upon vesting of restricted stock units			$ 90	(90)
Preferred stock dividend	(6,060)				(6,060)
Cumulative adjustment upon adoption of ASC 606	109,922				109,922
Net loss	(4,786,177)				(4,786,177)
Balance at Mar. 31, 2018	$ 4,679,090	$ 60	$ 5,883	$ 182,401,648	$ (177,728,501)
Balance (in shares) at Mar. 31, 2018		60,600	58,832,953