Net Loss Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	10,209,130	8,167,300
Stock options
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	10,159,130	8,157,550
Restricted stock
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	50,000	9,750