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INVESTMENTS (Narrative) (Details) $ / shares in Units, $ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 19, 2019 CAD ($) | Dec. 19, 2019 USD ($) | Jul. 31, 2019 CAD ($) $ / shares shares | Jun. 30, 2019 CAD ($) | Apr. 25, 2019 CAD ($) $ / shares shares | Feb. 20, 2019 CAD ($) $ / shares shares | Dec. 31, 2019 CAD ($) $ / shares shares
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Payments for investments | $ |  |  |  |  |  |  | $ 4,580
Boreal Metals Corp. [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Acquired through a private placement, units | shares |  |  |  |  |  | 1,995,672 |
Acquired through a private placement, amount | $ |  |  |  |  |  | $ 190 |
Acquired through a private placement, per unit |  |  |  |  |  | $ 0.095 |
Risk free interest rate, warrants |  |  |  |  |  |  | 1.69%
Expected dividend as percentage, warrants |  |  |  |  |  |  | 0.00%
Expected volatility, warrants |  |  |  |  |  |  | 112.00%
Forfeiture rate, warrants |  |  |  |  |  |  | 0.00%
Expected life, warrants |  |  |  |  |  |  | 1 year 1 month 6 days
Acquired additional common shares | shares |  |  |  |  |  |  | 2,226,000
Open market price |  |  |  |  |  |  | $ 0.05
Payment for additional custom shares | $ |  |  |  |  |  |  | $ 107
Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Net smelter return royalty |  |  |  |  | 1.00% |  |
Acquired through a private placement, units | shares |  |  |  |  | 7,142,857 |  |
Acquired through a private placement, amount | $ |  |  |  |  | $ 1,000 |  |
Acquired through a private placement, per unit |  |  |  |  | $ 0.14 |  |
Risk free interest rate, warrants |  |  |  |  |  |  | 1.70%
Expected dividend as percentage, warrants |  |  |  |  |  |  | 0.00%
Expected volatility, warrants |  |  |  |  |  |  | 127.00%
Forfeiture rate, warrants |  |  |  |  |  |  | 0.00%
Expected life, warrants |  |  |  |  |  |  | 1 year 7 months 21 days
Corvus Gold Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Purchase of royalty interest | $ |  |  |  | $ 350 |  |  |
Equity investment | $ |  |  |  | $ 900 |  |  |
Globetrotters Resource Group Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Acquired through a private placement, units | shares |  |  | 1,000,000 |  |  |  |
Acquired through a private placement, amount | $ |  |  | $ 500 |  |  |  |
Acquired through a private placement, per unit |  |  | $ 0.50 |  |  |  |
Rawhide Acquisition Holding, LLC [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Percentage of equity interest acquired | 19.90% | 19.90% |  |  |  |  |
Payments for investments | $ 4,581 | $ 3,519 |  |  |  |  |
Percentage of distribution taxable income | 50.00% | 50.00% |  |  |  |  |
Non Brokered [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Acquired through a private placement, units | shares |  |  | 1,300,000 |  |  |  |
Acquired through a private placement, amount | $ |  |  | $ 98 |  |  |  |
Acquired through a private placement, per unit |  |  | $ 0.075 |  |  |  |
Risk free interest rate, warrants |  |  |  |  |  |  | 1.70%
Expected dividend as percentage, warrants |  |  |  |  |  |  | 0.00%
Expected volatility, warrants |  |  |  |  |  |  | 127.00%
Forfeiture rate, warrants |  |  |  |  |  |  | 0.00%
Expected life, warrants |  |  |  |  |  |  | 1 year 7 months 21 days
Until December 14, 2019 [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  |  |  | 0.14 |  |
Until December 14, 2019 [Member] | Non Brokered [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  | 0.14 |  |  |  |
From December 15, 2019 until December 14, 2020 [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  |  |  | 0.17 |  |
From December 15, 2019 until December 14, 2020 [Member] | Non Brokered [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  | 0.17 |  |  |  |
From December 15, 2020 until December 14, 2021 [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  |  |  | $ 0.20 |  |
From December 15, 2020 until December 14, 2021 [Member] | Non Brokered [Member] | Millrock Resources Inc [Member] |  |  |  |  |  |  |
Disclosure Of Investments [Line Items] |  |  |  |  |  |  |
Warrants exercise price |  |  | $ 0.20 |  |  |  |

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