Consolidated Statements of Cash Flows - CAD ($)	12 Months Ended
	May 31, 2019	May 31, 2018
Operating activities
Net loss for the year	$ (10,858,005)	$ (9,298,163)
Add items not affecting cash:
Depreciation	15,069	18,020
Stock-based compensation (note 6)	1,633,957	673,233
Foreign exchange gain (loss)	(85,258)	123,758
Changes in non-cash items:
Accounts receivable	(24,220)	(11,914)
Prepaid expenses	(98,199)	(7,596)
Accounts payable and accrued liabilities	14,928	37,619
Cash used in operating activities	(9,401,728)	(8,465,043)
Financing activities
Cash received from issuance of shares	10,894,926	10,073,362
Share issuance costs	(31,059)	(107,348)
Cash provided by financing activities	10,863,867	9,966,014
Investing activities
Expenditures on property and equipment	(1,769)	(7,710)
Capitalized acquisition costs	(47,318)	(38,384)
Cash used in investing activities	(49,087)	(46,094)
Effect of foreign exchange on cash	121,492	(144,889)
Increase in cash and cash equivalents	1,534,544	1,309,988
Cash and cash equivalents, beginning of the year	2,610,541	1,300,553
Cash and cash equivalents, end of the year	$ 4,145,085	$ 2,610,541