Net loss per common stock

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Net loss per common stock

7. Net loss per common stock

Basic and diluted net loss per common stock is computed by dividing net loss by the weighted average number of common stock outstanding. The Company excluded outstanding stock options and common stock warrants from the calculation of basic and diluted net loss per common stock as the effect would have been antidilutive for all periods presented.

The following have been excluded from the computation of basic and diluted net loss per common stock as their effect would have been antidilutive:

	THREE MONTHS ENDED MARCH 31,
	2017		2016
Outstanding stock options		2,015,389		1,255,573
Common stock warrants		—		11,363
Total		2,015,389		1,266,936