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Subsequent Events (Narrative) (Details) $ in Millions | May 10, 2021 USD ($) | Apr. 21, 2021 CAD ($) shares | Apr. 15, 2021 CAD ($) Share shares | Apr. 15, 2021 USD ($) Share shares
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Subsequent event - Acquisition of GPU Atlantic Inc [Member] |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |
Percentage of voting equity interests acquired |  |  | 100.00% | 100.00%
Number of instruments or interests issued or issuable | Share |  |  | 5,000,000 | 5,000,000
Shares issued |  |  | $ 23.7 | $ 18,694,219
Common shares allocated to holdback |  |  | 1,000,000 | 1,000,000
Subsequent event - Sale of Norwegian Subsidiary Kolos [Member] |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |
Payments for sale of subsidiary to municipality of Narvik | $ | $ 200,000 |  |  |
Subsequent event - Investment in DeFi [Member] |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |
Number of common shares received in exchange for common shares of other entity |  | 10,000,000 |  |
Number of shares exchanged in share swap transaction |  | 4,000,000 |  |
Investment in DeFi | $ |  | $ 16.0 |  |

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