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Net loss per share (Tables)
6 Months Ended
Jun. 30, 2020
Net loss per share  
Schedule of outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share

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June 30, 

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2020

    

2019

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Unvested restricted common stock and restricted stock units

 

479,996

 

436,985

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Outstanding stock options

 

2,744,441

 

2,640,072

 

Outstanding warrants

 

10,000

 

76,041

 

Total

 

3,234,437

 

3,153,098