Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Common Share (Details)

v3.19.3
Net Loss Per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Basic and diluted net loss per common share calculation:                
Net loss $ (8,566) $ (4,691) $ (5,169) $ (4,483) $ (9,304) $ (9,021) $ (18,426) $ (22,808)
Net loss attributable to common stockholders $ (8,566)     $ (4,483)     $ (18,426) $ (22,808)
Weighted average common shares outstanding (in shares) 92,569,993     77,445,675     91,307,429 70,604,827
Net loss per share of common stock, basic and diluted (in dollars per share) $ (0.09)     $ (0.06)     $ (0.20) $ (0.32)
Outstanding securities excluded from computation of diluted weighted shares outstanding (in shares)             9,326,512 8,699,149
Employee Stock Option                
Basic and diluted net loss per common share calculation:                
Outstanding securities excluded from computation of diluted weighted shares outstanding (in shares)             7,678,421 8,576,058
Restricted Stock Units                
Basic and diluted net loss per common share calculation:                
Outstanding securities excluded from computation of diluted weighted shares outstanding (in shares)             1,025,000  
Warrants                
Basic and diluted net loss per common share calculation:                
Outstanding securities excluded from computation of diluted weighted shares outstanding (in shares)             623,091 123,091