Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Schedule of Right and Option to Earn-in and Acquire Undivided Interest (Details)

v3.21.2
Commitments and Contingencies - Schedule of Right and Option to Earn-in and Acquire Undivided Interest (Details)
12 Months Ended
Apr. 30, 2021
USD ($)
Initial earn in amount $ 4,500,000
First Agreement Year [Member]  
Initial earn in amount
Second Agreement Year [Member]  
Initial earn in amount 300,000
Third Agreement Year [Member]  
Initial earn in amount 500,000
Fourth Agreement Year [Member]  
Initial earn in amount 700,000
Fifth Agreement Year [Member]  
Initial earn in amount 1,000,000
Sixth Agreement Year [Member]  
Initial earn in amount 1,000,000
Seventh Agreement Year [Member]  
Initial earn in amount $ 1,000,000