3. COMMON STOCK - Summary of warrant activity (Details)	3 Months Ended
May 31, 2019 $ / shares shares
Warrants Outstanding
Outstanding at March 1, 2018	6,407,221
Granted
Exercised
Forfeited
Outstanding at November 30, 2018	6,407,221
Vested at November 30, 2018	6,407,221
Exercisable at February 28, 2018	6,407,221
Weighted-Average Exercise Price
Outstanding at beginning \| $ / shares	$ 0.21
Granted \| $ / shares
Exercised \| $ / shares
Forfeited
Outstanding at end (November 30, 2018) \| $ / shares	$ 0.21
Vested (November 30, 2018) \| $ / shares	0.21
Exercisable (February 28, 2018) \| $ / shares	$ 0.21

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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