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Net Loss Per Share (Tables)
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Schedule of common stock equivalents excluded from computation of diluted loss per share



 

Three months ended March 31,

 

 

2021

 

 

2020 

Outstanding stock options

 

 

 4,905,585

 

 

 

 3,808,563

Nonvested restricted stock and unit awards

 


1,216,455

 


1,094,825

Stock purchase warrants

 


715,199

 


715,199




6,837,239


5,618,587