Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share Of Common Stock, Basic And Diluted - Anti-dilutive Securities (Details)

v3.8.0.1
Net Loss Per Share Of Common Stock, Basic And Diluted - Anti-dilutive Securities (Details) - shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Anti-dilutive securities      
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding 0 0  
Stock options      
Anti-dilutive securities      
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding 2,812,006 1,849,359 959,188
Non-participating warrants on common stock      
Anti-dilutive securities      
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding 4,661,145 7,400,934 7,400,934
Underwriters' unit purchase option      
Anti-dilutive securities      
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding 40,000 40,000 40,000