INCOME TAXES (Details) - CAD	12 Months Ended
May 31, 2016	May 31, 2015
Loss before income taxes	CAD (7,434,215)	CAD (10,577,487)
Statutory Canadian corporate tax rate	26.00%	26.00%
Income tax recovery at statutory rates	CAD (1,932,896)	CAD (2,750,147)
Stock-based compensation	214,739	386,281
Effect of tax rate change	0	775,666
Difference in tax rates in other jurisdictions	(422,602)	(647,273)
Tax benefits not realized	2,140,759	2,235,473
Income tax recovery	CAD 0	CAD 0

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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