PROMISSORY NOTES (Details Narrative) - USD ($)	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Apr. 30, 2020
Accretion Expense		$ 25,538
Third Promissory Notes [Member]
Interest Rate	12.00%
Interest Terms	Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.	Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.
Interest Recorded	$ 738,929	$ 657,507
Debt Conversion	During the three months ended July 31, 2020, the Lender elected to have interest payable from December 1, 2019 to May 31, 2020 of $1,413,443 deemed as advances.
Fifth Promissory Notes [Member]
Promissory Notes Description	On September 11, 2018, the Company entered into a Loan Agreement with the Lender pursuant to which up to $2,500,000 will be advanced to the Company in tranches (the “Fifth Promissory Notes”).
Promissory Notes Advances	$ 2,500,000		$ 2,500,000
Interest Rate	14.00%		14.00%
Interest Terms	Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.	Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.
Interest Recorded	$ 103,176	$ 80,003
Debt Conversion	During the three months ended July 31, 2020, the Lender elected to have interest payable from December 1, 2019 to May 31, 2020 of $196,104 deemed as advances.
Sixth Promissory Notes [Member]
Promissory Notes Description	On October 25, 2019, the Company entered into a Loan Agreement with the Lender pursuant to which up to $700,000 will be advanced to the Company in tranches (the “Sixth Promissory Notes”). On January 20, 2020 and July 8, 2020, the Company entered into amending agreements whereby the Lender agreed to advance an additional $600,000 and $1,200,000, respectively, under the same terms as the Sixth Promissory Notes.
Interest Terms	Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.	Interest is payable semi-annually as calculated on May 31st and November 30th of each year. Interest is to be paid either in cash, in common shares or deemed an advance of principal at the option of the Lender. A 5% late payment penalty may apply if payment is not paid within ten days after the due date.
Interest Recorded	$ 48,004
Debt Conversion	During the three months ended July 31, 2020, the Lender elected to have interest payable from December 1, 2019 to May 31, 2020 of $65,170 deemed as advances.