Quarterly report pursuant to Section 13 or 15(d)

Reclamation and Restoration Provisions (Details Textual)

v3.19.3
Reclamation and Restoration Provisions (Details Textual) - USD ($)
9 Months Ended 12 Months Ended
May 31, 2019
Aug. 31, 2015
Aug. 31, 2018
Oil Extraction Facility [Member]      
Reclamation and Restoration Provisions (Textual)      
Oil extraction plant lease term 25 years    
Provision for dismantling facility   $ 350,000  
Discount rate for provision 2.00%   2.00%
Site Restoration [Member]      
Reclamation and Restoration Provisions (Textual)      
Discount rate for provision 2.00%   2.00%
Lease term for restore contaminated and disturbed land 25 years    
Provision for rehabilitation and restoration costs   $ 200,000