Net Loss Per Common Share (Tables)

3 Months Ended

Jul. 31, 2020

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

	July 31, 2020		July 31, 2019
Common stock equivalents:
Preferred stock		-		-
Restricted stock units		32,500		111,228
Stock options		100,000		136,895
Stock warrants		746,753		499,360
Total		879,253		747,483