NET LOSS PER COMMON SHARE

3 Months Ended

Mar. 31, 2018

14. NET LOSS PER COMMON SHARE

Basic and diluted net loss per share of common stock has been computed by dividing net loss by the weighted average number of shares outstanding during the period. Diluted net income per share of common stock is computed by dividing net income by the weighted average number of shares outstanding plus the dilutive effect, if any, of outstanding stock options, warrants and convertible securities. In a net loss period, options, warrants related to the Company’s May 2014 capital raise, unvested restricted stock units and convertible securities are anti-dilutive and therefore excluded from diluted loss per share calculations.

For the three-month periods ended March 31, 2018 and 2017, the following potentially dilutive securities were not included in the computation of net loss per share because the effect would be anti-dilutive:


	March 31,
	2018	2017
Stock options	81,011	161,271
Warrants	86,419	135,658
Unvested restricted stock units	16,700	—
	184,130	296,929