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Income Taxes (Tables)
 12 Months Ended
Mar. 31, 2021
Major components of tax expense (income) [Abstract]  
Schedule of effective income tax expense (recovery) [Table Text Block]
    March 31, 2021     March 31, 2020  
             
Income (loss) for the year from continuing operations before $ 42,691,050   $ (832,081 )
             
Expected income tax (recovery) $ 11,527,336   $ (224,258 )
Change in statutory, foreign tax, foreign exchange rates and other   (13,449,000 )   (1,342,000 )
Permanent differences   4,799,000     260,000  
Impact on sale of subsidiary   3,924,000     -  
Share issue cost   (497,000 )   -  
Adjustment to prior years provision and other   1,803,000     11,155,000  
Change in unrecognized deductible temporary differences   (7,956,000 )   (9,018,000 )
Tax recovery (expense) $ 151,336   $ 830,742  
             
Current income tax $ 151,336   $ 830,742  
Deferred income tax   -     -  
Total income tax $ 151,336   $ 830,742  
Schedule of temporary difference, unused tax losses and unused tax credits [Table Text Block]
  March 31, 2021     March 31, 2020     Expiry  
                   
Intangible asset $ 6,209,000   $ -     2020 - 2039  
Share issue costs and other   5,162,000     8,758,000     2041 - 2045  
Loss carryforwards   75,393,000     87,023,000     2025 - Indefinite  
Digital currencies   -     9,434,000     NA  
Intercompany loan   12,884,000     -     NA  
Data centre equipment   4,368,000     14,249,000     NA  
  $ 104,016,000   $ 119,464,000