Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 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 December 31,
	2018		2017
Common stock options		1,545,403		1,075,209
Warrants to purchase common stock		75,597		—
Redeemable convertible preferred stock		—		9,131,999
Warrants to purchase redeemable convertible    preferred stock		—		486,356
Total		1,621,000		10,693,564