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STOCK OPTION RESERVE (Details 1) - shares
shares in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
P B I 2021 Equity Incentive Plan [Member]    
IfrsStatementLineItems [Line Items]    
Balance 868,000
Granted
Expired or forfeited
Balance 868,000
Balance 868,000
Exercisable as at end 116,666
Exercisable as at end 116,666
P B I 2013 Option Plan [Member]    
IfrsStatementLineItems [Line Items]    
Balance 2,980
Granted  
Expired or forfeited
Balance 2,980
Balance 2,980
Exercisable as at end 2,980
Exercisable as at end 2,980
I Ox Option Plan [Member]    
IfrsStatementLineItems [Line Items]    
Balance 1,924 2,599
Granted
Expired or forfeited
Balance 1,924 2,599
Balance 1,924 2,599
Exercisable as at end 1,764 1,723
Exercisable as at end 1,764 1,723