REVENUE AND GENERAL AND ADMINISTRATIVE EXPENSES - Disclosure of detailed information about revenue and other income (Details) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Revenue And General And Administrative Expenses [Abstract]
Royalty revenue	$ 1,439	$ 2,131
Interest income	1,667	822
Other property income	1,978	583
Revenue and other income	$ 5,084	$ 3,536

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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