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Net Loss per Share (Tables)
6 Months Ended
Jun. 30, 2020
Net Loss per Share  
Summary of anti-dilutive securities

Six Months Ended June 30, 

    

2020

    

2019

    

Restricted common stock

126,646

480,663

Warrant

7,614

7,614

Stock options

3,491,671

2,423,561

3,625,931

2,911,838