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SUPPLEMENTAL FINANCIAL INFORMATION (Details 2) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | $ (4,125) | $ (3,653)
Interest income |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | 594 | 1,049
Interest expense |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (9) | 0
Accretion expense-deferred revenue |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (3,203) | (3,314)
Accretion expense-post-employment benefits |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (70) | (72)
Accretion expense-reclamation obligations |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | (1,361) | $ (1,316)
Accretion expense-debt obligations |  |
DisclosureOfFinanceIncomeExpenseLineItems [Line Items] |  |
Finance income (expense) | $ (76) |

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