Financial instruments - Narrative (Details)	6 Months Ended
May 31, 2021 USD ($)	May 31, 2021 CAD ($)	Nov. 30, 2020 USD ($)
Accounts receivable	$ 19,000		$ 129,000
10% change in the US-Canadian exchange rate
Cash		$ 123,000
Accounts receivable		24,000
Accounts payable		$ 248,000
Change in foreign exchange rate	10.00%	10.00%
Foreign exchange loss	$ 8,000
1% change in interest rates
Change in interest rate	1.00%	1.00%
Interest rate loss	$ 200,000

Represents the change in foreign exchange rate.

No definition available.

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- Definition

Represents the change in interest rate.

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No definition available.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

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Amount of unrealized gain (loss) included in earnings related to the fair value of the hedged item in an interest rate fair value hedge, offset by the gain (loss) on the hedging instrument to the extent that the fair value hedge is determined to be effective.

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