Net Loss per Common Share (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Anti-Dilutive Securities Excluded from Computations of Diluted Weighted-Average Shares

The following potentially dilutive securities have been excluded from the computations of diluted weighted-average shares outstanding for the periods presented, as they would be anti-dilutive:

	For the year ended
	December 31,
	2016		2017
Preferred warrants outstanding (number of common stock equivalents)		529		529
Common warrants outstanding		11,623,957		8,647,996
RSUs outstanding		174,249		360,920
Common options outstanding		896,662		2,449,284
Total anti-dilutive common share equivalents		12,695,397		11,458,729