10. Net Loss Per Share

Basic earnings per share (“EPS”) is calculated by dividing the net income or loss available to common stockholders by the weighted average number of common shares outstanding for the period, without consideration for common stock equivalents. Diluted EPS is computed by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period and the weighted average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For purposes of this calculation, common stock subject to repurchase by the Company, options, performance-based restricted stock units and warrants are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share when their effect is dilutive.

The following table presents the computation of basic and diluted net loss per share for continuing and discontinued operations (in thousands, except per share amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Numerator:
Loss from continuing operations	$	(7,064	)	$	(2,629	)	$	(8,918	)	$	(8,053	)
Loss from discontinued operations		(12	)		(68	)		(74	)		(159	)
Net loss	$	(7,076	)	$	(2,697	)	$	(8,992	)	$	(8,212	)
Denominator:
Weighted average common shares outstanding		34,030			11,102			27,656			10,102
Weighted average unvested common shares subject to repurchase		—			(55	)		—			(69	)
Weighted average common shares outstanding—basic and diluted		34,030			11,047			27,656			10,033
Net loss per share, basic and diluted:
Continuing operations	$	(0.21	)	$	(0.24	)	$	(0.32	)	$	(0.80	)
Discontinued operations	$	(0.00	)	$	(0.01	)	$	(0.00	)	$	(0.02	)
Net loss per share, basic and diluted	$	(0.21	)	$	(0.24	)	$	(0.33	)	$	(0.82	)

The anti-dilutive securities not included in diluted net loss per share were as follows calculated on a weighted average basis (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Options to purchase common stock		446		1,444		390		1,298
Unvested restricted share awards		—		55		—		69
Series A Convertible Preferred Stock		2,022		7,383		2,262		3,796
Convertible Notes		942		—		1,180		—
Warrants to purchase common stock		2,530		87		1,097		1,132
Total		5,940		8,969		4,929		6,295