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Strategic Investment in Prismo Metals Inc. and Intangible Assets - Disclosure of restricted holding period and voluntary escrow of discount for lack of marketability (Details) - Level 2 of fair value hierarchy [Member]
 12 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Market Price Closing Date Six July Twenty Three [Member]    
Disclosure Of Intangible Assets Line Items    
DLOM   8.90%
Market Price Closing Date Six Jan Twenty Four [Member]    
Disclosure Of Intangible Assets Line Items    
DLOM   22.10%
Market Price Closing Date Six July Twenty Four [Member]    
Disclosure Of Intangible Assets Line Items    
DLOM 10.87% 27.50%
Market Price Closing Date Six Jan Twenty Five [Member]    
Disclosure Of Intangible Assets Line Items    
DLOM 19.90% 30.00%