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Net Loss Per Share (Details) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Anti-dilutive securities    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive 3,046,324 1,659,251
Stock options    
Anti-dilutive securities    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive 3,046,324 1,658,141
Restricted Stock    
Anti-dilutive securities    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive   1,110