Stockholders' Deficit - Schedule of Warrant Activity (Details) - Warrant [Member]	6 Months Ended
	Oct. 31, 2018 $ / shares shares
Number of Warrants Outstanding, Beginning of Period | shares	6,643,333
Number of Warrants, Granted | shares	850,000
Number of Warrants, Exercised | shares	(5,000,000)
Number of Warrants, Expired | shares
Number of Warrants Outstanding, End of Period | shares	2,493,333
Weighted Average Exercise Price of Warrants Outstanding, Beginning of Period | $ / shares	$ 0.08	[1]
Weighted Average Exercise Price, Granted | $ / shares	0.22	[1]
Weighted Average Exercise Price, Exercised | $ / shares	0.0001	[1]
Weighted Average Exercise Price, Expired | $ / shares		[1]
Weighted Average Exercise Price of Warrants Outstanding, End of Period | $ / shares	$ 0.21	[1]
Weighted Average Remaining Term, Beginning of Period	4 years 8 months 12 days	[1]
Weighted Average Remaining Term, Granted	4 years 10 months 25 days	[1]
Weighted Average Remaining Term, End of Period	4 years 6 months	[1]

[1] In October 2018, an executive officer of the Company exercised warrants (granted in connection with his employment agreement disclosed previously) to purchase 5,000,000 shares of the Company's Series A Convertible Preferred Stock at the exercise price of $0.0001. Between April 2018 and October 2018, in conjunction with the sale, in the aggregate, of 2,160,000 shares of its common stock pursuant to stock subscription agreements, the Company granted warrants to purchase up to 2,160,000 shares of its common stock at a price determined by the average trading price per share of the Company common stock.