6. Earnings Per Share

The Company calculates earnings per share (“EPS”) as required by FASB ASC Topic No. 260, Earnings Per Share. Basic EPS is calculated by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, excluding 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, plus the weighted average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For periods with a net loss, the dilutive common stock equivalents are excluded from the diluted EPS calculation. For purposes of this calculation, common stock subject to repurchase by the Company, options, 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 sets forth the details of basic and diluted earnings per share:

	For the Three Months Ended March 31,
	2018			2017
	(unaudited, in thousands, except per share amounts)
Numerator:
Net loss	$	(2,381	)	$	(2,880	)
Dividends paid to preferred stockholders		(141	)		—
Net loss available to common stockholders	$	(2,522	)	$	(2,880	)
Denominator:
Weighted average shares outstanding – basic		15,299			12,163
Potential common shares – options / warrants (treasury stock method)		—			—
Weighted average shares outstanding – diluted		15,299			12,163
Shares excluded (anti-dilutive)		—			—
Shares excluded due to an exercise price greater than weighted average stock price for the period		1,073			1,908
Net loss per common share:
Basic	$	(0.16	)	$	(0.24	)
Diluted	$	(0.16	)	$	(0.24	)