Condensed Interim Consolidated Statements of Capital Deficit (Equity) (Unaudited) - USD ($)	Common Stock	Commitment to Issue Shares	Additional Paid-In Capital	Accumulated Deficit [Member]	Total
Beginning Balance at Apr. 30, 2019	$ 19,118,229	$ 106,858	$ 1,866,274	$ (43,010,566)	$ (21,919,205)
Beginning Balance (in Shares) at Apr. 30, 2019	92,676,115
Share-based payments - vesting			858		858
Reallocation of vested options to liabilities			1,100		1,100
Loss for the period				(1,231,824)	(1,231,824)
Ending Balance at Jul. 31, 2019	$ 19,118,229	106,858	1,866,032	(44,242,390)	(23,151,271)
Ending Balance (Shares) at Jul. 31, 2019	92,676,115
Shares issued as a debt discount	$ 106,858	$ (106,858)
Shares issued as a debt discount (Shares)	1,054,097
Share-based payments - vesting			30		30
Reallocation of vested options to liabilities			(720)		(720)
Loss for the period				(3,884,926)	(3,884,926)
Ending Balance at Apr. 30, 2020	$ 19,225,087		1,865,342	(48,127,316)	$ (27,036,887)
Ending Balance (Shares) at Apr. 30, 2020	93,730,212				93,730,212
Adoption of ASU 2018-07 adjustment				16,541	$ 16,541
Loss for the period				(1,184,135)	(1,184,135)
Ending Balance at Jul. 31, 2020	$ 19,225,087		$ 1,865,342	$ (49,294,910)	$ (28,204,481)
Ending Balance (Shares) at Jul. 31, 2020	93,730,212				93,730,212