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3. EARNINGS PER SHARE

6 Months Ended

Nov. 30, 2017

Basic earnings per share is determined using the weighted average number of common shares outstanding during the period. Diluted earnings per share is determined using the weighted average number of common shares and potential common shares (representing the dilutive effect of stock options, RSUs and ESPP shares) outstanding during the period using the treasury stock method.

The following table presents the computation of basic and diluted net income (loss) per share attributable to the Company’s common shareholders (in thousands, except per share data):

	Three Months Ended				Six Months Ended
	November 30,				November 30,
	2017		2016		2017		2016

Numerator: Net income (loss)	$	60	$	(1,452)	$	70	$	(2,207)

Denominator for basic net income (loss) per share:
Weighted average shares outstanding		21,645		16,029		21,531		14,673

Shares used in basic net income (loss) per share calculation		21,645		16,029		21,531		14,673
Effect of dilutive securities		1,238		--		1,406		--

Denominator for diluted net income (loss) per share		22,883		16,029		22,937		14,673

Basic net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)
Diluted net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)

For the purpose of computing diluted earnings per share, the weighted average number of potential common shares does not include stock options with an exercise price greater than the average fair value of the Company’s common stock for the period, as the effect would be anti-dilutive. Stock options to purchase 263,000 shares of common stock were outstanding as of November 30, 2017 but were not included in the computation of diluted net income per share, because the inclusion of such shares would be anti-dilutive. In the three and six months ended November 30, 2016, potential common shares have not been included in the calculation of diluted net loss per share as the effect would be anti-dilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share for this period are the same. Stock options to purchase 3,229,000 shares of common stock, RSUs for 72,000 shares and ESPP rights to purchase 246,000 ESPP shares were outstanding as of November 30, 2016, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive. The 2,657,000 shares convertible under the convertible notes outstanding at November 30, 2017 and 2016 were not included in the computation of diluted net income (loss) per share, because the inclusion of such shares would be anti-dilutive.