6. Net Loss per Common Share (Tables)

3 Months Ended

Jul. 31, 2019

Earnings Per Share [Abstract]

Antidilutive shares

The calculation of weighted average diluted shares outstanding excludes the dilutive effect of the following weighted average outstanding stock options, unvested RSUs and shares of common stock expected to be issued under our ESPP as their impact is anti-dilutive during periods of net loss (in thousands):

	Three Months Ended July 31,
	2019		2018
Stock options		107		102
RSUs		46		7
ESPP		2		3
Total		155		112

The calculation of weighted average diluted shares outstanding also excludes the following weighted average outstanding stock options, unvested RSUs, warrants, and Series E Preferred Stock (assuming the if-converted method), as their exercise prices or conversion price were greater than the average market price of our common stock during the respective periods, resulting in an anti-dilutive effect (in thousands):

	Three Months Ended July 31,
	2019		2018
Stock options		2,858		2,695
RSUs		42		–
Warrants		–		39
Series E Preferred Stock		1,979		1,979
Total		4,879		4,713