10. Net Loss Per Share

For the three months ended March 31, 2018 and 2017, earnings was not allocated to participating securities in the calculation of basic and diluted earnings per share as there were net losses. For the three months ended March 31, 2018 and 2017, the net loss available to common shareholders was divided by the weighted-average number of common shares outstanding during the period to calculate diluted earnings per share. For the three months ended March 31, 2018 and 2017, the assumed exercise of stock options and assumed vesting of restricted stock and restricted stock units were not included in the computation of net loss per share as their effect would have been anti-dilutive.

The following presents a reconciliation of the numerator and denominator used in the calculation of basic net loss per share and a reconciliation of the numerator and denominator used in the calculation of diluted net loss per share (in thousands, except share and per share data):


	Three Months Ended March 31,
	2018			2017
Numerator:
Net loss, as reported	$	(1,199	)	$	(1,075	)
Less: net loss attributable to participating securities		—			—

Net loss available to common shareholders—basic and diluted	$	(1,199	)	$	(1,075	)

Denominator:
Weighted-average shares of common stock outstanding		41,846,619			41,469,616
Less: weighted-average shares of unvested restricted common stock outstanding		(1,840,830	)		(1,993,177	)

Weighted-average number of common shares used in computing basic and diluted net loss per common share		40,005,789			39,476,439

Net loss per share applicable to common shareholders—basic and diluted	$	(0.03	)	$	(0.03	)

The following common share equivalents have been excluded from the computation of diluted weighted-average shares outstanding, as their effect would have been anti-dilutive:


	Three Months Ended March 31,
	2018		2017
Options		620,312		952,422
Unvested restricted common stock		685,719		551,499
Unvested restricted stock units		64,024		59,582