DEFERRED REVENUE (Details 1) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
DisclosureOfDeferredRevenueLineItems [Line Items]
Deferred revenue, beginning	$ 37,727	$ 38,652
Revenue earned during the period	15,549	15,550
Deferred revenue, ending	36,321	37,727
Deferred Revenue
DisclosureOfDeferredRevenueLineItems [Line Items]
Deferred revenue, beginning	37,727	38,652
Revenue earned during the period	(4,609)	(4,239)
Accretion	3,203	3,314
Deferred revenue, ending	$ 36,321	$ 37,727

Expiry date 2020-01-01: 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. Effective 2020-01-01: The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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+ Details