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Short-term investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Mar. 31, 2024
Short-term investments [Abstract]    
Total short-term investments $ 15 $ 0
Canadian Deposits [Member]    
Short-term investments [Abstract]    
Total short-term investments $ 15 $ 0
Investment interest rate 3.00%  
Investment maturity date Apr. 01, 2025