4. BASIC AND DILUTED LOSS PER SHARE

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

BASIC AND DILUTED LOSS PER SHARE

4.	BASIC AND DILUTED LOSS PER SHARE

Basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares outstanding for the period. Diluted net loss per share is computed by dividing the net loss by the weighted-average number of shares and dilutive share equivalents outstanding for the period, determined using the treasury-stock and if-converted methods. Since the Company has had net losses for all periods presented, all potentially dilutive securities are anti-dilutive. Accordingly, basic and diluted net loss per share are equal.

The following potential common stock equivalents were not included in the calculation of diluted net loss per common share because the inclusion thereof would be anti-dilutive (in thousands):

		Three Months Ended March 31
		2018				2017
Stock Options			2,476				2,107
Unvested restricted stock			316				518
Warrants			765				765
			3,557				3,390

The calculation for basic and diluted loss per share excludes unvested restricted stock awards which are subject to forfeiture.