Net Loss Per Common Share (Tables)

9 Months Ended

Jan. 31, 2018

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

	January 31, 2018		January 31, 2017
Common stock equivalents:
Stock options		231,458		694,375
Stock warrants		1,735,774		-
Convertible preferred stock		967,860		31,720,809
Total		2,935,092		32,415,184