Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical)

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]    
Payments of stock issuance costs $ 356,214 $ 768,412
Payments of Class A units issuance costs   65,816
Payments of Series A Convertible Preferred Stock issuance costs   $ 267,231