XML 41 R31.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accounting Policies - Antidilutive Securities (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities 13,254,675 7,256,368 13,088,703 6,855,779
Common stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities 1,766,047 0 1,646,198 0
Common stock warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities 11,488,628 7,256,368 11,442,505 6,855,779