Annual report pursuant to Section 13 and 15(d)

Net Loss Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)

v3.10.0.1
Net Loss Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
12 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Total 3,233,817 45,719,232
Stock Options [Member]    
Total 1,531,458 231,458
Stock Warrants [Member]    
Total 1,702,359 485,774
Convertible Preferred Stock [Member]    
Total 45,002,000