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Equity - Schedule of changes in restricted share units outstanding (Details) - Restricted share units [Member] - Share
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Number of other equity instruments outstanding, beginning balance 356,800 620,000
Number of other equity instruments granted 8,000 62,000
Number of other equity instruments cancelled (12,500)  
Number of other equity instruments exercised (290,800) (325,200)
Number of other equity instruments outstanding, ending balance 61,500 356,800