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Net Loss Per Share (Details) - shares
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Net loss per share    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive 1,725,868 886,673
Stock options    
Net loss per share    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive 1,724,758 882,673
Restricted Stock    
Net loss per share    
Potentially dilutive common shares not been included in net loss per common share calculations because the effect would have been anti-dilutive 1,110 4,000