Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Schedule Of Outstanding Potentially Dilutive Securities Excluded In Calculation Of Diluted Net Loss Per Share

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because their inclusion would be anti-dilutive.

	As of September 30,
	2018		2017
Redeemable convertible preferred stock		13,200,115		9,131,999
Common stock options		1,315,625		1,084,243
Warrants to purchase redeemable convertible preferred stock		708,484		269,225
Total		15,224,224		10,485,467