Quarterly report pursuant to Section 13 or 15(d)

Mineral Leases (Details) - Schedule of mineral leases

v3.21.2
Mineral Leases (Details) - Schedule of mineral leases - USD ($)
 9 Months Ended 12 Months Ended
May 31, 2019
Aug. 31, 2018
Aug. 31, 2017
Cost      
Beginning balance, cost $ 11,111,143 $ 11,091,388  
Additions, cost 10,800,000 19,755  
Ending balance, cost 21,911,143 11,111,143  
Accumulated Amortization      
Beginning balance, accumulated amortization  
Additions. accumulated amortization  
Ending balance, accumulated amortization  
Carrying Amount      
Balance, carrying amount 21,911,143 11,111,143 $ 11,091,388
TMC Mineral Lease [Member]      
Cost      
Beginning balance, cost 11,091,388 11,091,388  
Additions, cost  
Ending balance, cost 11,091,388 11,091,388  
Accumulated Amortization      
Beginning balance, accumulated amortization  
Additions. accumulated amortization  
Ending balance, accumulated amortization  
Carrying Amount      
Balance, carrying amount 11,091,388 11,091,388 11,091,388
POSR Mineral Lease [Member]      
Cost      
Beginning balance, cost 19,755  
Additions, cost 19,755  
Ending balance, cost 19,755 19,755  
Accumulated Amortization      
Beginning balance, accumulated amortization  
Additions. accumulated amortization  
Ending balance, accumulated amortization  
Carrying Amount      
Balance, carrying amount 19,755 19,755
PQE Mineral Lease [Member]      
Cost      
Beginning balance, cost  
Additions, cost 10,800,000  
Ending balance, cost 10,800,000  
Accumulated Amortization      
Beginning balance, accumulated amortization  
Additions. accumulated amortization  
Ending balance, accumulated amortization  
Carrying Amount      
Balance, carrying amount $ 10,800,000