Net loss per share (Tables)

3 Months Ended

Mar. 31, 2020

Net loss per share

Schedule of outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share

	March 31,
	2020	2019
Unvested restricted common stock and restricted stock units	561,786	419,716
Outstanding stock options	2,840,525	2,802,343
Outstanding warrants	10,000	76,041
Total	3,412,311	3,298,100