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Vesting of exercise of warrants shares.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Aggregate number of common shares reserved for future issuance.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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The cash inflow from the additional capital contribution to the entity.

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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Amount of noncash expense for share-based payment arrangement.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net 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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Amount by which current fair value of underlying stock exceeds exercise price of 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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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Amount of noncash expense for option under share-based payment arrangement.

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Share capital - Additional information (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended						9 Months Ended				12 Months Ended
	Apr. 20, 2018 USD ($) $ / shares shares	Aug. 31, 2019 USD ($) shares	May 31, 2019 USD ($)	Feb. 28, 2019 USD ($)	Aug. 31, 2018 USD ($)	May 31, 2018 USD ($) shares	Feb. 28, 2018 USD ($)	Aug. 31, 2019 $ / shares	Aug. 31, 2019 USD ($) $ / shares shares	Aug. 31, 2018 USD ($) $ / shares	Aug. 31, 2018 USD ($) $ / shares shares	Nov. 30, 2018 USD ($) shares	Aug. 31, 2019 USD ($) $ / shares shares
Stock options granted, weighted average exercise price \| $ / shares								$ 2.96		$ 1.15
Stock options granted, weighted average exercise price \| $ / shares									$ 1.08		$ 0.43
Stock-based compensation		$ (402)	$ (664)	$ (1,939)	$ (204)	$ (151)	$ (922)
Non-vested stock options outstanding \| shares													11,042,502
Weighted average exercise price options outstanding \| $ / shares													$ 0.96
Aggregate intrinsic value, vested options					9,200					$ 9,200	$ 9,200		$ 10,600
Aggregate intrinsic value, options exercised									$ 500		400
Stock Issued During Period, Value, New Issues						28,750
Legal Fees	$ 1,800
Proceeds from Issuance of Common Stock	26,900								0		(1,805)
Cash proceeds									$ 9,913		0
Share capital [Member]
Stock-based compensation		$ 0	$ 0	0	$ 0	0	$ 0
Stock Issued During Period, Value, New Issues	$ 28,700					$ 28,750						$ 28,750
Stock Issued During Period, Shares, New Issues \| shares	24,784,482					24,784,482						24,784,482
Shares Issued, Price Per Share \| $ / shares	$ 1.16
Warrants exercised \| shares		6,521,740							6,521,740
Nonvested Options [Member]
Non-vested stock options outstanding \| shares													1,775,005
Weighted average exercise price options outstanding \| $ / shares								$ 1.82
Number of DSU's [Member]
Common stock committed for issuance \| shares													11,927
Class of Warrant or Right, Number of Securities Called by Warrants or Rights \| shares													1,988
Granted Units \| shares									119,139
Number of RSU's [Member]
Granted Units \| shares									225,000
Stock Compensation Plan [Member]
Stock-based compensation									$ 780		$ 560
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period \| shares												412,501
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period \| shares												225,000
Approximationss [Member] \| Nonvested Options [Member]
Stock option expense				$ 630
New Employees [Member]
Stock options granted \| shares									2,527,500		2,395,000
Directors, Employees and Services Providers [Member]
Stock-based compensation									$ 2,230		$ 710